373232640 has 264 divisors, whose sum is σ = 1330582752. Its totient is φ = 88555520.

The previous prime is 373232617. The next prime is 373232669. The reversal of 373232640 is 46232373.

It is a tau number, because it is divible by the number of its divisors (264).

It is a super-2 number, since 2×373232640² = 278605207122739200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 373232598 and 373232607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7941097 + ... + 7941143.

Almost surely, 2^373232640 is an apocalyptic number.

373232640 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 373232640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (665291376).

373232640 is an abundant number, since it is smaller than the sum of its proper divisors (957350112).

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

373232640 is a wasteful number, since it uses less digits than its factorization.

373232640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 68 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 30.

The square root of 373232640 is about 19319.2297983124. The cubic root of 373232640 is about 719.9901233213.

The spelling of 373232640 in words is "three hundred seventy-three million, two hundred thirty-two thousand, six hundred forty".