27770490 has 48 divisors (see below), whose sum is σ = 78770016. Its totient is φ = 6732000.

The previous prime is 27770447. The next prime is 27770521. The reversal of 27770490 is 9407772.

It is a super-2 number, since 2×27770490² = 1542400229680200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13036 + ... + 15015.

It is an arithmetic number, because the mean of its divisors is an integer number (1641042).

Almost surely, 2^27770490 is an apocalyptic number.

27770490 is an abundant number, since it is smaller than the sum of its proper divisors (50999526).

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

27770490 is a wasteful number, since it uses less digits than its factorization.

27770490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28075 (or 28072 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 36.

The square root of 27770490 is about 5269.7713422880. The cubic root of 27770490 is about 302.8269442800.

The spelling of 27770490 in words is "twenty-seven million, seven hundred seventy thousand, four hundred ninety".