30740740 has 12 divisors (see below), whose sum is σ = 64555596. Its totient is φ = 12296288.

The previous prime is 30740737. The next prime is 30740753. The reversal of 30740740 is 4704703.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19571776 + 11168964 = 4424^2 + 3342^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 768499 + ... + 768538.

It is an arithmetic number, because the mean of its divisors is an integer number (5379633).

Almost surely, 2^30740740 is an apocalyptic number.

It is an amenable number.

30740740 is an abundant number, since it is smaller than the sum of its proper divisors (33814856).

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

30740740 is a wasteful number, since it uses less digits than its factorization.

30740740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1537046 (or 1537044 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 30740740 is about 5544.4332442550. The cubic root of 30740740 is about 313.2598766490.

The spelling of 30740740 in words is "thirty million, seven hundred forty thousand, seven hundred forty".