30730464 has 36 divisors (see below), whose sum is σ = 87390576. Its totient is φ = 10243392.

The previous prime is 30730451. The next prime is 30730471. The reversal of 30730464 is 46403703.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×30730464² = 1888722835310592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53064 + ... + 53639.

It is an arithmetic number, because the mean of its divisors is an integer number (2427516).

Almost surely, 2^30730464 is an apocalyptic number.

It is an amenable number.

30730464 is an abundant number, since it is smaller than the sum of its proper divisors (56660112).

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

30730464 is a wasteful number, since it uses less digits than its factorization.

30730464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106719 (or 106708 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 30730464 is about 5543.5064715395. The cubic root of 30730464 is about 313.2249673045.

The spelling of 30730464 in words is "thirty million, seven hundred thirty thousand, four hundred sixty-four".