2190915474 has 32 divisors (see below), whose sum is σ = 4811857920. Its totient is φ = 659514000.

The previous prime is 2190915473. The next prime is 2190915487. The reversal of 2190915474 is 4745190912.

It is a super-2 number, since 2×2190915474² = 9600221228425289352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2190915473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99954 + ... + 119885.

It is an arithmetic number, because the mean of its divisors is an integer number (150370560).

Almost surely, 2^2190915474 is an apocalyptic number.

2190915474 is an abundant number, since it is smaller than the sum of its proper divisors (2620942446).

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

2190915474 is a wasteful number, since it uses less digits than its factorization.

2190915474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220006.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 2190915474 is about 46807.2160462465. The cubic root of 2190915474 is about 1298.7987866609.

The spelling of 2190915474 in words is "two billion, one hundred ninety million, nine hundred fifteen thousand, four hundred seventy-four".