634902142 has 8 divisors (see below), whose sum is σ = 1088403696. Its totient is φ = 272100912.

The previous prime is 634902131. The next prime is 634902173. The reversal of 634902142 is 241209436.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 22675063 + ... + 22675090.

It is an arithmetic number, because the mean of its divisors is an integer number (136050462).

Almost surely, 2^634902142 is an apocalyptic number.

634902142 is a deficient number, since it is larger than the sum of its proper divisors (453501554).

634902142 is a wasteful number, since it uses less digits than its factorization.

634902142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45350162.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 634902142 is about 25197.2645737588. The cubic root of 634902142 is about 859.4796482625.

The spelling of 634902142 in words is "six hundred thirty-four million, nine hundred two thousand, one hundred forty-two".