1970749431 has 24 divisors (see below), whose sum is σ = 3256075680. Its totient is φ = 1125182016.

The previous prime is 1970749421. The next prime is 1970749477. The reversal of 1970749431 is 1349470791.

It is not a de Polignac number, because 1970749431 - 2⁵ = 1970749399 is a prime.

It is a super-2 number, since 2×1970749431² = 7767706639573647522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1970749421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64701 + ... + 90153.

It is an arithmetic number, because the mean of its divisors is an integer number (135669820).

Almost surely, 2^1970749431 is an apocalyptic number.

1970749431 is a deficient number, since it is larger than the sum of its proper divisors (1285326249).

1970749431 is a wasteful number, since it uses less digits than its factorization.

1970749431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26695 (or 26692 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 1970749431 is about 44393.1236904996. The cubic root of 1970749431 is about 1253.7486256205.

The spelling of 1970749431 in words is "one billion, nine hundred seventy million, seven hundred forty-nine thousand, four hundred thirty-one".