30640462 has 16 divisors (see below), whose sum is σ = 49508352. Its totient is φ = 14180760.

The previous prime is 30640453. The next prime is 30640469. The reversal of 30640462 is 26404603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30640469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9318 + ... + 12169.

It is an arithmetic number, because the mean of its divisors is an integer number (3094272).

Almost surely, 2^30640462 is an apocalyptic number.

30640462 is a deficient number, since it is larger than the sum of its proper divisors (18867890).

30640462 is a wasteful number, since it uses less digits than its factorization.

30640462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21543.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 30640462 is about 5535.3827329282. The cubic root of 30640462 is about 312.9188818973.

The spelling of 30640462 in words is "thirty million, six hundred forty thousand, four hundred sixty-two".