331252020 has 216 divisors, whose sum is σ = 1125869472. Its totient is φ = 78756480.

The previous prime is 331252001. The next prime is 331252039. The reversal of 331252020 is 20252133.

It is an interprime number because it is at equal distance from previous prime (331252001) and next prime (331252039).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 331251984 and 331252002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1459147 + ... + 1459373.

Almost surely, 2^331252020 is an apocalyptic number.

331252020 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 331252020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (562934736).

331252020 is an abundant number, since it is smaller than the sum of its proper divisors (794617452).

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

331252020 is a wasteful number, since it uses less digits than its factorization.

331252020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331 (or 315 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 331252020 is about 18200.3302167845. The cubic root of 331252020 is about 691.9151582755.

The spelling of 331252020 in words is "three hundred thirty-one million, two hundred fifty-two thousand, twenty".