30486890 has 64 divisors (see below), whose sum is σ = 65664000. Its totient is φ = 9974016.

The previous prime is 30486889. The next prime is 30486901. The reversal of 30486890 is 9868403.

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, 204536 + ... + 204684.

It is an arithmetic number, because the mean of its divisors is an integer number (1026000).

Almost surely, 2^30486890 is an apocalyptic number.

30486890 is an abundant number, since it is smaller than the sum of its proper divisors (35177110).

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

30486890 is a wasteful number, since it uses less digits than its factorization.

30486890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 30486890 is about 5521.4934573899. The cubic root of 30486890 is about 312.3952160690.

The spelling of 30486890 in words is "thirty million, four hundred eighty-six thousand, eight hundred ninety".