30500010 has 64 divisors (see below), whose sum is σ = 82373760. Its totient is φ = 8029440.

The previous prime is 30500009. The next prime is 30500011. The reversal of 30500010 is 1000503.

It is an interprime number because it is at equal distance from previous prime (30500009) and next prime (30500011).

It is a super-2 number, since 2×30500010² = 1860501220000200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 30499965 and 30500001.

It is not an unprimeable number, because it can be changed into a prime (30500011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21730 + ... + 23090.

It is an arithmetic number, because the mean of its divisors is an integer number (1287090).

Almost surely, 2^30500010 is an apocalyptic number.

30500010 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30500010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41186880).

30500010 is an abundant number, since it is smaller than the sum of its proper divisors (51873750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30500010 is a wasteful number, since it uses less digits than its factorization.

30500010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460 (or 1454 counting only the distinct ones).

The product of its (nonzero) digits is 15, while the sum is 9.

The square root of 30500010 is about 5522.6814139510. The cubic root of 30500010 is about 312.4400226228.

Adding to 30500010 its reverse (1000503), we get a palindrome (31500513).

The spelling of 30500010 in words is "thirty million, five hundred thousand, ten".