30640027 has 8 divisors (see below), whose sum is σ = 35184960. Its totient is φ = 26388360.

The previous prime is 30640019. The next prime is 30640087. The reversal of 30640027 is 72004603.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30640027 - 2³ = 30640019 is a prime.

It is a super-2 number, since 2×30640027² = 1877622509121458, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30640087) 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, 73093 + ... + 73510.

It is an arithmetic number, because the mean of its divisors is an integer number (4398120).

Almost surely, 2^30640027 is an apocalyptic number.

30640027 is a deficient number, since it is larger than the sum of its proper divisors (4544933).

30640027 is a wasteful number, since it uses less digits than its factorization.

30640027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146633.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 30640027 is about 5535.3434401128. The cubic root of 30640027 is about 312.9174010628.

The spelling of 30640027 in words is "thirty million, six hundred forty thousand, twenty-seven".