634403290 has 16 divisors (see below), whose sum is σ = 1144535040. Its totient is φ = 253181520.

The previous prime is 634403281. The next prime is 634403299. The reversal of 634403290 is 92304436.

634403290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (634403281) and next prime (634403299).

It is not an unprimeable number, because it can be changed into a prime (634403299) 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, 67866 + ... + 76645.

It is an arithmetic number, because the mean of its divisors is an integer number (71533440).

Almost surely, 2^634403290 is an apocalyptic number.

634403290 is a deficient number, since it is larger than the sum of its proper divisors (510131750).

634403290 is a wasteful number, since it uses less digits than its factorization.

634403290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144957.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 634403290 is about 25187.3636969017. The cubic root of 634403290 is about 859.2544873257.

The spelling of 634403290 in words is "six hundred thirty-four million, four hundred three thousand, two hundred ninety".