1356931442 has 16 divisors (see below), whose sum is σ = 2136672000. Its totient is φ = 645449520.

The previous prime is 1356931441. The next prime is 1356931447. The reversal of 1356931442 is 2441396531.

It is a junction number, because it is equal to n+sod(n) for n = 1356931396 and 1356931405.

It is not an unprimeable number, because it can be changed into a prime (1356931441) 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, 181817 + ... + 189132.

It is an arithmetic number, because the mean of its divisors is an integer number (133542000).

Almost surely, 2^1356931442 is an apocalyptic number.

1356931442 is a deficient number, since it is larger than the sum of its proper divisors (779740558).

1356931442 is a wasteful number, since it uses less digits than its factorization.

1356931442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371041.

The product of its digits is 77760, while the sum is 38.

The square root of 1356931442 is about 36836.5503542338. The cubic root of 1356931442 is about 1107.0977511823.

The spelling of 1356931442 in words is "one billion, three hundred fifty-six million, nine hundred thirty-one thousand, four hundred forty-two".