352172493 has 48 divisors (see below), whose sum is σ = 569866752. Its totient is φ = 208512000.

The previous prime is 352172477. The next prime is 352172501. The reversal of 352172493 is 394271253.

It is not a de Polignac number, because 352172493 - 2⁴ = 352172477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (352172413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 193558 + ... + 195368.

It is an arithmetic number, because the mean of its divisors is an integer number (11872224).

Almost surely, 2^352172493 is an apocalyptic number.

It is an amenable number.

352172493 is a deficient number, since it is larger than the sum of its proper divisors (217694259).

352172493 is a wasteful number, since it uses less digits than its factorization.

352172493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1906 (or 1903 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 352172493 is about 18766.2594301582. The cubic root of 352172493 is about 706.1849816356.

The spelling of 352172493 in words is "three hundred fifty-two million, one hundred seventy-two thousand, four hundred ninety-three".