30461886 has 64 divisors (see below), whose sum is σ = 83328000. Its totient is φ = 8032608.

The previous prime is 30461863. The next prime is 30461891. The reversal of 30461886 is 68816403.

It is a happy number.

30461886 is a `hidden beast` number, since 30 + 4 + 618 + 8 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 30461886.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1815 + ... + 8013.

It is an arithmetic number, because the mean of its divisors is an integer number (1302000).

Almost surely, 2^30461886 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30461886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41664000).

30461886 is an abundant number, since it is smaller than the sum of its proper divisors (52866114).

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

30461886 is a wasteful number, since it uses less digits than its factorization.

30461886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6230 (or 6224 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 30461886 is about 5519.2287504687. The cubic root of 30461886 is about 312.3097884594.

It can be divided in two parts, 304618 and 86, that added together give a square (304704 = 552²).

The spelling of 30461886 in words is "thirty million, four hundred sixty-one thousand, eight hundred eighty-six".