1356641404 has 24 divisors (see below), whose sum is σ = 2421800640. Its totient is φ = 664824576.

The previous prime is 1356641369. The next prime is 1356641411. The reversal of 1356641404 is 4041466531.

It is a self number, because there is not a number n which added to its sum of digits gives 1356641404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27624 + ... + 58960.

It is an arithmetic number, because the mean of its divisors is an integer number (100908360).

Almost surely, 2^1356641404 is an apocalyptic number.

It is an amenable number.

1356641404 is a deficient number, since it is larger than the sum of its proper divisors (1065159236).

1356641404 is a wasteful number, since it uses less digits than its factorization.

1356641404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31557 (or 31555 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 1356641404 is about 36832.6133202628. The cubic root of 1356641404 is about 1107.0188665047.

The spelling of 1356641404 in words is "one billion, three hundred fifty-six million, six hundred forty-one thousand, four hundred four".