30415664 has 20 divisors (see below), whose sum is σ = 60963360. Its totient is φ = 14683200.

The previous prime is 30415657. The next prime is 30415667. The reversal of 30415664 is 46651403.

It is a happy number.

It is a super-2 number, since 2×30415664² = 1850225233121792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (30415667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32312 + ... + 33239.

It is an arithmetic number, because the mean of its divisors is an integer number (3048168).

Almost surely, 2^30415664 is an apocalyptic number.

It is an amenable number.

30415664 is an abundant number, since it is smaller than the sum of its proper divisors (30547696).

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

30415664 is a wasteful number, since it uses less digits than its factorization.

30415664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65588 (or 65582 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 30415664 is about 5515.0398004004. The cubic root of 30415664 is about 312.1517451636.

The spelling of 30415664 in words is "thirty million, four hundred fifteen thousand, six hundred sixty-four".