30748070 has 16 divisors (see below), whose sum is σ = 58602528. Its totient is φ = 11575680.

The previous prime is 30748057. The next prime is 30748093. The reversal of 30748070 is 7084703.

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, 90266 + ... + 90605.

It is an arithmetic number, because the mean of its divisors is an integer number (3662658).

Almost surely, 2^30748070 is an apocalyptic number.

30748070 is a deficient number, since it is larger than the sum of its proper divisors (27854458).

30748070 is a wasteful number, since it uses less digits than its factorization.

30748070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180895.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 30748070 is about 5545.0942282345. The cubic root of 30748070 is about 313.2847731697.

The spelling of 30748070 in words is "thirty million, seven hundred forty-eight thousand, seventy".