30557480 has 16 divisors (see below), whose sum is σ = 68754420. Its totient is φ = 12222976.

The previous prime is 30557479. The next prime is 30557489. The reversal of 30557480 is 8475503.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30228004 + 329476 = 5498^2 + 574^2 .

It is not an unprimeable number, because it can be changed into a prime (30557489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381929 + ... + 382008.

Almost surely, 2^30557480 is an apocalyptic number.

It is an amenable number.

30557480 is an abundant number, since it is smaller than the sum of its proper divisors (38196940).

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

30557480 is a wasteful number, since it uses less digits than its factorization.

30557480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763948 (or 763944 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 30557480 is about 5527.8820537345. The cubic root of 30557480 is about 312.6361390831.

The spelling of 30557480 in words is "thirty million, five hundred fifty-seven thousand, four hundred eighty".