636051442 has 48 divisors (see below), whose sum is σ = 1069627680. Its totient is φ = 283360896.

The previous prime is 636051419. The next prime is 636051443. The reversal of 636051442 is 244150636.

It is a super-2 number, since 2×636051442² = 809122873740558728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (636051443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1554934 + ... + 1555342.

It is an arithmetic number, because the mean of its divisors is an integer number (22283910).

Almost surely, 2^636051442 is an apocalyptic number.

636051442 is a deficient number, since it is larger than the sum of its proper divisors (433576238).

636051442 is a wasteful number, since it uses less digits than its factorization.

636051442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587 (or 574 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 636051442 is about 25220.0603092062. The cubic root of 636051442 is about 859.9979457315.

The spelling of 636051442 in words is "six hundred thirty-six million, fifty-one thousand, four hundred forty-two".