1396131742 has 8 divisors (see below), whose sum is σ = 2204418600. Its totient is φ = 661325544.

The previous prime is 1396131739. The next prime is 1396131769. The reversal of 1396131742 is 2471316931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18370117 + ... + 18370192.

It is an arithmetic number, because the mean of its divisors is an integer number (275552325).

Almost surely, 2^1396131742 is an apocalyptic number.

1396131742 is a deficient number, since it is larger than the sum of its proper divisors (808286858).

1396131742 is a wasteful number, since it uses less digits than its factorization.

1396131742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36740330.

The product of its digits is 27216, while the sum is 37.

The square root of 1396131742 is about 37364.8463398419. The cubic root of 1396131742 is about 1117.6576637116.

The spelling of 1396131742 in words is "one billion, three hundred ninety-six million, one hundred thirty-one thousand, seven hundred forty-two".