13402377 has 6 divisors (see below), whose sum is σ = 19359002. Its totient is φ = 8934912.

The previous prime is 13402373. The next prime is 13402423. The reversal of 13402377 is 77320431.

It can be written as a sum of positive squares in only one way, i.e., 11431161 + 1971216 = 3381^2 + 1404^2 .

It is not a de Polignac number, because 13402377 - 2² = 13402373 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13402377.

It is not an unprimeable number, because it can be changed into a prime (13402373) 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, 744568 + ... + 744585.

Almost surely, 2^13402377 is an apocalyptic number.

It is an amenable number.

13402377 is a deficient number, since it is larger than the sum of its proper divisors (5956625).

13402377 is a wasteful number, since it uses less digits than its factorization.

13402377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1489159 (or 1489156 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 13402377 is about 3660.9257026058. The cubic root of 13402377 is about 237.5348174255.

The spelling of 13402377 in words is "thirteen million, four hundred two thousand, three hundred seventy-seven".