402612628 has 24 divisors (see below), whose sum is σ = 769152384. Its totient is φ = 182880000.

The previous prime is 402612619. The next prime is 402612629. The reversal of 402612628 is 826216204.

It is a self number, because there is not a number n which added to its sum of digits gives 402612628.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402612629) 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, 98628 + ... + 102628.

It is an arithmetic number, because the mean of its divisors is an integer number (32048016).

Almost surely, 2^402612628 is an apocalyptic number.

It is an amenable number.

402612628 is a deficient number, since it is larger than the sum of its proper divisors (366539756).

402612628 is a wasteful number, since it uses less digits than its factorization.

402612628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6303 (or 6301 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 402612628 is about 20065.2093933754. The cubic root of 402612628 is about 738.4069870772.

The spelling of 402612628 in words is "four hundred two million, six hundred twelve thousand, six hundred twenty-eight".