30825664 has 14 divisors (see below), whose sum is σ = 61169804. Its totient is φ = 15412800.

The previous prime is 30825661. The next prime is 30825677. The reversal of 30825664 is 46652803.

It is a happy number.

It is a super-2 number, since 2×30825664² = 1900443122081792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30825661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240762 + ... + 240889.

Almost surely, 2^30825664 is an apocalyptic number.

It is an amenable number.

30825664 is a deficient number, since it is larger than the sum of its proper divisors (30344140).

30825664 is an equidigital number, since it uses as much as digits as its factorization.

30825664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481663 (or 481653 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 30825664 is about 5552.0864546583. The cubic root of 30825664 is about 313.5480807426.

The spelling of 30825664 in words is "thirty million, eight hundred twenty-five thousand, six hundred sixty-four".