1396155402 has 12 divisors (see below), whose sum is σ = 3025003410. Its totient is φ = 465385128.

The previous prime is 1396155389. The next prime is 1396155403. The reversal of 1396155402 is 2045516931.

1396155402 is a `hidden beast` number, since 1 + 39 + 615 + 5 + 4 + 0 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1388978361 + 7177041 = 37269^2 + 2679^2 .

It is not an unprimeable number, because it can be changed into a prime (1396155403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38782077 + ... + 38782112.

Almost surely, 2^1396155402 is an apocalyptic number.

1396155402 is an abundant number, since it is smaller than the sum of its proper divisors (1628848008).

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

1396155402 is a wasteful number, since it uses less digits than its factorization.

1396155402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77564197 (or 77564194 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 1396155402 is about 37365.1629462525. The cubic root of 1396155402 is about 1117.6639772588.

The spelling of 1396155402 in words is "one billion, three hundred ninety-six million, one hundred fifty-five thousand, four hundred two".