1396411644 has 24 divisors (see below), whose sum is σ = 3288189520. Its totient is φ = 461199744.

The previous prime is 1396411633. The next prime is 1396411649. The reversal of 1396411644 is 4461146931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1396411649) 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, 532489 + ... + 535104.

Almost surely, 2^1396411644 is an apocalyptic number.

It is an amenable number.

1396411644 is an abundant number, since it is smaller than the sum of its proper divisors (1891777876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1396411644 is a wasteful number, since it uses less digits than its factorization.

1396411644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067709 (or 1067707 counting only the distinct ones).

The product of its digits is 62208, while the sum is 39.

The square root of 1396411644 is about 37368.5916780389. The cubic root of 1396411644 is about 1117.7323495267.

The spelling of 1396411644 in words is "one billion, three hundred ninety-six million, four hundred eleven thousand, six hundred forty-four".