351252992 has 20 divisors (see below), whose sum is σ = 701820966. Its totient is φ = 175626240.

The previous prime is 351252991. The next prime is 351253009. The reversal of 351252992 is 299252153.

It can be written as a sum of positive squares in only one way, i.e., 351037696 + 215296 = 18736^2 + 464^2 .

It is not an unprimeable number, because it can be changed into a prime (351252991) 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, 342509 + ... + 343532.

Almost surely, 2^351252992 is an apocalyptic number.

351252992 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

351252992 is a deficient number, since it is larger than the sum of its proper divisors (350567974).

351252992 is an frugal number, since it uses more digits than its factorization.

351252992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686059 (or 686043 counting only the distinct ones).

The product of its digits is 48600, while the sum is 38.

The square root of 351252992 is about 18741.7446359724. The cubic root of 351252992 is about 705.5698439232.

The spelling of 351252992 in words is "three hundred fifty-one million, two hundred fifty-two thousand, nine hundred ninety-two".