30744628 has 6 divisors (see below), whose sum is σ = 53803106. Its totient is φ = 15372312.

The previous prime is 30744587. The next prime is 30744647. The reversal of 30744628 is 82644703.

It can be written as a sum of positive squares in only one way, i.e., 21270544 + 9474084 = 4612^2 + 3078^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30744593 and 30744602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3843075 + ... + 3843082.

Almost surely, 2^30744628 is an apocalyptic number.

It is an amenable number.

30744628 is a deficient number, since it is larger than the sum of its proper divisors (23058478).

30744628 is a wasteful number, since it uses less digits than its factorization.

30744628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7686161 (or 7686159 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 30744628 is about 5544.7838551201. The cubic root of 30744628 is about 313.2730828270.

The spelling of 30744628 in words is "thirty million, seven hundred forty-four thousand, six hundred twenty-eight".