1974572690 has 16 divisors (see below), whose sum is σ = 3594167640. Its totient is φ = 780954240.

The previous prime is 1974572687. The next prime is 1974572737. The reversal of 1974572690 is 962754791.

It can be written as a sum of positive squares in 4 ways, for example, as 1627234921 + 347337769 = 40339^2 + 18637^2 .

It is a super-2 number, since 2×1974572690² = 7797874616187672200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1108421 + ... + 1110200.

Almost surely, 2^1974572690 is an apocalyptic number.

1974572690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1974572690 is a deficient number, since it is larger than the sum of its proper divisors (1619594950).

1974572690 is a wasteful number, since it uses less digits than its factorization.

1974572690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2218717.

The product of its (nonzero) digits is 952560, while the sum is 50.

The square root of 1974572690 is about 44436.1642133972. The cubic root of 1974572690 is about 1254.5588604205.

The spelling of 1974572690 in words is "one billion, nine hundred seventy-four million, five hundred seventy-two thousand, six hundred ninety".