1974585938 has 16 divisors (see below), whose sum is σ = 3377346840. Its totient is φ = 857738496.

The previous prime is 1974585937. The next prime is 1974585971. The reversal of 1974585938 is 8395854791.

It can be written as a sum of positive squares in 4 ways, for example, as 1237843489 + 736742449 = 35183^2 + 27143^2 .

It is not an unprimeable number, because it can be changed into a prime (1974585937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2233253 + ... + 2234136.

Almost surely, 2^1974585938 is an apocalyptic number.

1974585938 is a deficient number, since it is larger than the sum of its proper divisors (1402760902).

1974585938 is a wasteful number, since it uses less digits than its factorization.

1974585938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4467421.

The product of its digits is 10886400, while the sum is 59.

The square root of 1974585938 is about 44436.3132809192. The cubic root of 1974585938 is about 1254.5616661513.

The spelling of 1974585938 in words is "one billion, nine hundred seventy-four million, five hundred eighty-five thousand, nine hundred thirty-eight".