402140013 has 64 divisors (see below), whose sum is σ = 638910720. Its totient is φ = 222566400.

The previous prime is 402139987. The next prime is 402140017. The reversal of 402140013 is 310041204.

It is not a de Polignac number, because 402140013 - 2¹⁷ = 402008941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 402139974 and 402140001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402140017) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1451631 + ... + 1451907.

It is an arithmetic number, because the mean of its divisors is an integer number (9982980).

Almost surely, 2^402140013 is an apocalyptic number.

It is an amenable number.

402140013 is a deficient number, since it is larger than the sum of its proper divisors (236770707).

402140013 is a wasteful number, since it uses less digits than its factorization.

402140013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 402140013 is about 20053.4289586594. The cubic root of 402140013 is about 738.1179426075.

Adding to 402140013 its reverse (310041204), we get a palindrome (712181217).

The spelling of 402140013 in words is "four hundred two million, one hundred forty thousand, thirteen".