215074490 has 32 divisors (see below), whose sum is σ = 410667840. Its totient is φ = 80870400.

The previous prime is 215074487. The next prime is 215074501. The reversal of 215074490 is 94470512.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20570 + ... + 29210.

It is an arithmetic number, because the mean of its divisors is an integer number (12833370).

Almost surely, 2^215074490 is an apocalyptic number.

215074490 is a deficient number, since it is larger than the sum of its proper divisors (195593350).

215074490 is a wasteful number, since it uses less digits than its factorization.

215074490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8798.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 215074490 is about 14665.4181665577. The cubic root of 215074490 is about 599.1418194250.

The spelling of 215074490 in words is "two hundred fifteen million, seventy-four thousand, four hundred ninety".