2142931444 has 6 divisors (see below), whose sum is σ = 3750130034. Its totient is φ = 1071465720.

The previous prime is 2142931429. The next prime is 2142931477. The reversal of 2142931444 is 4441392412.

It can be written as a sum of positive squares in only one way, i.e., 2065702500 + 77228944 = 45450^2 + 8788^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267866427 + ... + 267866434.

Almost surely, 2^2142931444 is an apocalyptic number.

It is an amenable number.

2142931444 is a deficient number, since it is larger than the sum of its proper divisors (1607198590).

2142931444 is a wasteful number, since it uses less digits than its factorization.

2142931444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535732865 (or 535732863 counting only the distinct ones).

The product of its digits is 27648, while the sum is 34.

The square root of 2142931444 is about 46291.8075257383. The cubic root of 2142931444 is about 1289.2468901031.

The spelling of 2142931444 in words is "two billion, one hundred forty-two million, nine hundred thirty-one thousand, four hundred forty-four".