634343492 has 6 divisors (see below), whose sum is σ = 1110101118. Its totient is φ = 317171744.

The previous prime is 634343461. The next prime is 634343497. The reversal of 634343492 is 294343436.

It can be written as a sum of positive squares in only one way, i.e., 567201856 + 67141636 = 23816^2 + 8194^2 .

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (634343497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79292933 + ... + 79292940.

It is an arithmetic number, because the mean of its divisors is an integer number (185016853).

Almost surely, 2^634343492 is an apocalyptic number.

It is an amenable number.

634343492 is a deficient number, since it is larger than the sum of its proper divisors (475757626).

634343492 is a wasteful number, since it uses less digits than its factorization.

634343492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158585877 (or 158585875 counting only the distinct ones).

The product of its digits is 186624, while the sum is 38.

The square root of 634343492 is about 25186.1766054318. The cubic root of 634343492 is about 859.2274890871.

The spelling of 634343492 in words is "six hundred thirty-four million, three hundred forty-three thousand, four hundred ninety-two".