100021410 has 48 divisors (see below), whose sum is σ = 261012024. Its totient is φ = 26574336.

The previous prime is 100021409. The next prime is 100021429. The reversal of 100021410 is 14120001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 87553449 + 12467961 = 9357^2 + 3531^2 .

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 = 100021392 and 100021401.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24474 + ... + 28266.

Almost surely, 2^100021410 is an apocalyptic number.

100021410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100021410 is an abundant number, since it is smaller than the sum of its proper divisors (160990614).

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

100021410 is a wasteful number, since it uses less digits than its factorization.

100021410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4099 (or 4096 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 100021410 is about 10001.0704427076. The cubic root of 100021410 is about 464.1920064698.

Adding to 100021410 its reverse (14120001), we get a palindrome (114141411).

The spelling of 100021410 in words is "one hundred million, twenty-one thousand, four hundred ten".