30662740 has 12 divisors (see below), whose sum is σ = 64391796. Its totient is φ = 12265088.

The previous prime is 30662717. The next prime is 30662759. The reversal of 30662740 is 4726603.

It can be written as a sum of positive squares in 2 ways, for example, as 17960644 + 12702096 = 4238^2 + 3564^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30662699 and 30662708.

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, 766549 + ... + 766588.

It is an arithmetic number, because the mean of its divisors is an integer number (5365983).

Almost surely, 2^30662740 is an apocalyptic number.

It is an amenable number.

30662740 is an abundant number, since it is smaller than the sum of its proper divisors (33729056).

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

30662740 is a wasteful number, since it uses less digits than its factorization.

30662740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533146 (or 1533144 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 30662740 is about 5537.3946942583. The cubic root of 30662740 is about 312.9947023162.

The spelling of 30662740 in words is "thirty million, six hundred sixty-two thousand, seven hundred forty".