402042513 has 8 divisors (see below), whose sum is σ = 538193376. Its totient is φ = 266960000.

The previous prime is 402042497. The next prime is 402042523. The reversal of 402042513 is 315240204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 402042513 - 2⁴ = 402042497 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 402042513.

It is not an unprimeable number, because it can be changed into a prime (402042523) 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, 266208 + ... + 267713.

It is an arithmetic number, because the mean of its divisors is an integer number (67274172).

Almost surely, 2^402042513 is an apocalyptic number.

It is an amenable number.

402042513 is a deficient number, since it is larger than the sum of its proper divisors (136150863).

402042513 is a wasteful number, since it uses less digits than its factorization.

402042513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534175.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 402042513 is about 20050.9978055956. The cubic root of 402042513 is about 738.0582848482.

Adding to 402042513 its reverse (315240204), we get a palindrome (717282717).

The spelling of 402042513 in words is "four hundred two million, forty-two thousand, five hundred thirteen".