332156640 has 96 divisors (see below), whose sum is σ = 1052061696. Its totient is φ = 88087040.

The previous prime is 332156623. The next prime is 332156677. The reversal of 332156640 is 46651233.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×332156640² = 220656066992179200, 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 = 332156598 and 332156607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89869 + ... + 93491.

It is an arithmetic number, because the mean of its divisors is an integer number (10958976).

Almost surely, 2^332156640 is an apocalyptic number.

332156640 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 332156640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (526030848).

332156640 is an abundant number, since it is smaller than the sum of its proper divisors (719905056).

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

332156640 is a wasteful number, since it uses less digits than its factorization.

332156640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3832 (or 3824 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 332156640 is about 18225.1650198290. The cubic root of 332156640 is about 692.5444388413.

The spelling of 332156640 in words is "three hundred thirty-two million, one hundred fifty-six thousand, six hundred forty".