1391412674 has 16 divisors (see below), whose sum is σ = 2199180480. Its totient is φ = 658426320.

The previous prime is 1391412647. The next prime is 1391412679. The reversal of 1391412674 is 4762141931.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (1391412679) 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, 20867 + ... + 56729.

It is an arithmetic number, because the mean of its divisors is an integer number (137448780).

Almost surely, 2^1391412674 is an apocalyptic number.

1391412674 is a deficient number, since it is larger than the sum of its proper divisors (807767806).

1391412674 is a wasteful number, since it uses less digits than its factorization.

1391412674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36905.

The product of its digits is 36288, while the sum is 38.

The square root of 1391412674 is about 37301.6443873457. The cubic root of 1391412674 is about 1116.3969765090.

The spelling of 1391412674 in words is "one billion, three hundred ninety-one million, four hundred twelve thousand, six hundred seventy-four".