30265040 has 40 divisors (see below), whose sum is σ = 75781608. Its totient is φ = 11174400.

The previous prime is 30265019. The next prime is 30265051. The reversal of 30265040 is 4056203.

It can be written as a sum of positive squares in 4 ways, for example, as 1449616 + 28815424 = 1204^2 + 5368^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 13511 + ... + 15590.

Almost surely, 2^30265040 is an apocalyptic number.

It is an amenable number.

30265040 is an abundant number, since it is smaller than the sum of its proper divisors (45516568).

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

30265040 is a wasteful number, since it uses less digits than its factorization.

30265040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29127 (or 29121 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 30265040 is about 5501.3671028209. The cubic root of 30265040 is about 311.6356144850.

The spelling of 30265040 in words is "thirty million, two hundred sixty-five thousand, forty".