402630617 has 8 divisors (see below), whose sum is σ = 422317824. Its totient is φ = 383125248.

The previous prime is 402630589. The next prime is 402630673. The reversal of 402630617 is 716036204.

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 402630617 - 2¹⁶ = 402565081 is a prime.

It is a super-2 number, since 2×402630617² = 324222827491601378, which contains 22 as substring.

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 402630617.

It is not an unprimeable number, because it can be changed into a prime (402630517) 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, 40913 + ... + 49790.

It is an arithmetic number, because the mean of its divisors is an integer number (52789728).

Almost surely, 2^402630617 is an apocalyptic number.

It is an amenable number.

402630617 is a deficient number, since it is larger than the sum of its proper divisors (19687207).

402630617 is a wasteful number, since it uses less digits than its factorization.

402630617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90919.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 402630617 is about 20065.6576518189. The cubic root of 402630617 is about 738.4179844185.

It can be divided in two parts, 4026 and 30617, that added together give a palindrome (34643).

The spelling of 402630617 in words is "four hundred two million, six hundred thirty thousand, six hundred seventeen".