402630365 has 4 divisors (see below), whose sum is σ = 483156444. Its totient is φ = 322104288.

The previous prime is 402630359. The next prime is 402630379. The reversal of 402630365 is 563036204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 67996516 + 334633849 = 8246^2 + 18293^2 .

It is a cyclic number.

It is not a de Polignac number, because 402630365 - 2¹⁸ = 402368221 is a prime.

It is a super-2 number, since 2×402630365² = 324222421640066450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40263032 + ... + 40263041.

It is an arithmetic number, because the mean of its divisors is an integer number (120789111).

Almost surely, 2^402630365 is an apocalyptic number.

It is an amenable number.

402630365 is a deficient number, since it is larger than the sum of its proper divisors (80526079).

402630365 is an equidigital number, since it uses as much as digits as its factorization.

402630365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80526078.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 402630365 is about 20065.6513724324. The cubic root of 402630365 is about 738.4178303638.

Adding to 402630365 its reverse (563036204), we get a palindrome (965666569).

The spelling of 402630365 in words is "four hundred two million, six hundred thirty thousand, three hundred sixty-five".