30337940 has 12 divisors (see below), whose sum is σ = 63709716. Its totient is φ = 12135168.

The previous prime is 30337913. The next prime is 30337963. The reversal of 30337940 is 4973303.

It can be written as a sum of positive squares in 2 ways, for example, as 11710084 + 18627856 = 3422^2 + 4316^2 .

It is a congruent number.

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, 758429 + ... + 758468.

It is an arithmetic number, because the mean of its divisors is an integer number (5309143).

Almost surely, 2^30337940 is an apocalyptic number.

It is an amenable number.

30337940 is an abundant number, since it is smaller than the sum of its proper divisors (33371776).

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

30337940 is a wasteful number, since it uses less digits than its factorization.

30337940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1516906 (or 1516904 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 29.

The square root of 30337940 is about 5507.9887436341. The cubic root of 30337940 is about 311.8856281426.

The spelling of 30337940 in words is "thirty million, three hundred thirty-seven thousand, nine hundred forty".