635222645 has 16 divisors (see below), whose sum is σ = 776610048. Its totient is φ = 498674880.

The previous prime is 635222597. The next prime is 635222657. The reversal of 635222645 is 546222536.

It is not a de Polignac number, because 635222645 - 2²² = 631028341 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 87287 + ... + 94283.

It is an arithmetic number, because the mean of its divisors is an integer number (48538128).

Almost surely, 2^635222645 is an apocalyptic number.

It is an amenable number.

635222645 is a deficient number, since it is larger than the sum of its proper divisors (141387403).

635222645 is a wasteful number, since it uses less digits than its factorization.

635222645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7340.

The product of its digits is 86400, while the sum is 35.

The square root of 635222645 is about 25203.6236481979. The cubic root of 635222645 is about 859.6242476940.

The spelling of 635222645 in words is "six hundred thirty-five million, two hundred twenty-two thousand, six hundred forty-five".