352172400 has 120 divisors (see below), whose sum is σ = 1164639744. Its totient is φ = 90873600.

The previous prime is 352172393. The next prime is 352172413. The reversal of 352172400 is 4271253.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32467 + ... + 41933.

Almost surely, 2^352172400 is an apocalyptic number.

352172400 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 352172400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (582319872).

352172400 is an abundant number, since it is smaller than the sum of its proper divisors (812467344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

352172400 is a wasteful number, since it uses less digits than its factorization.

352172400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9519 (or 9508 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 352172400 is about 18766.2569523067. The cubic root of 352172400 is about 706.1849194736.

The spelling of 352172400 in words is "three hundred fifty-two million, one hundred seventy-two thousand, four hundred".