30747470 has 16 divisors (see below), whose sum is σ = 59603040. Its totient is φ = 11352864.

The previous prime is 30747469. The next prime is 30747517. The reversal of 30747470 is 7474703.

It is a happy number.

It is a super-2 number, since 2×30747470² = 1890813822801800, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118130 + ... + 118389.

It is an arithmetic number, because the mean of its divisors is an integer number (3725190).

Almost surely, 2^30747470 is an apocalyptic number.

30747470 is a deficient number, since it is larger than the sum of its proper divisors (28855570).

30747470 is a wasteful number, since it uses less digits than its factorization.

30747470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236539.

The product of its (nonzero) digits is 16464, while the sum is 32.

The square root of 30747470 is about 5545.0401260947. The cubic root of 30747470 is about 313.2827354040.

The spelling of 30747470 in words is "thirty million, seven hundred forty-seven thousand, four hundred seventy".