1375988042 has 48 divisors (see below), whose sum is σ = 2509432296. Its totient is φ = 561686400.

The previous prime is 1375987997. The next prime is 1375988051. The reversal of 1375988042 is 2408895731.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 983512321 + 392475721 = 31361^2 + 19811^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110492 + ... + 122312.

Almost surely, 2^1375988042 is an apocalyptic number.

1375988042 is a deficient number, since it is larger than the sum of its proper divisors (1133444254).

1375988042 is a wasteful number, since it uses less digits than its factorization.

1375988042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11895 (or 11884 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 1375988042 is about 37094.3127985949. The cubic root of 1375988042 is about 1112.2563312989.

The spelling of 1375988042 in words is "one billion, three hundred seventy-five million, nine hundred eighty-eight thousand, forty-two".