30495864 has 32 divisors (see below), whose sum is σ = 87131520. Its totient is φ = 8713056.

The previous prime is 30495863. The next prime is 30495869. The reversal of 30495864 is 46859403.

It is a super-2 number, since 2×30495864² = 1859995442212992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30495863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90594 + ... + 90929.

It is an arithmetic number, because the mean of its divisors is an integer number (2722860).

Almost surely, 2^30495864 is an apocalyptic number.

It is an amenable number.

30495864 is an abundant number, since it is smaller than the sum of its proper divisors (56635656).

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

30495864 is a wasteful number, since it uses less digits than its factorization.

30495864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181539 (or 181535 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 30495864 is about 5522.3060400525. The cubic root of 30495864 is about 312.4258648675.

The spelling of 30495864 in words is "thirty million, four hundred ninety-five thousand, eight hundred sixty-four".