30486556 has 6 divisors (see below), whose sum is σ = 53351480. Its totient is φ = 15243276.

The previous prime is 30486551. The next prime is 30486563. The reversal of 30486556 is 65568403.

It is a super-2 number, since 2×30486556² = 1858860193482272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30486551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3810816 + ... + 3810823.

Almost surely, 2^30486556 is an apocalyptic number.

It is an amenable number.

30486556 is a deficient number, since it is larger than the sum of its proper divisors (22864924).

30486556 is a wasteful number, since it uses less digits than its factorization.

30486556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7621643 (or 7621641 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 30486556 is about 5521.4632118669. The cubic root of 30486556 is about 312.3940752466.

It can be divided in two parts, 3048 and 6556, that added together give a square (9604 = 98²).

The spelling of 30486556 in words is "thirty million, four hundred eighty-six thousand, five hundred fifty-six".