331773408 has 120 divisors (see below), whose sum is σ = 1007455680. Its totient is φ = 106997760.

The previous prime is 331773391. The next prime is 331773433. The reversal of 331773408 is 804377133.

It is a super-2 number, since 2×331773408² = 220147188511868928, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 78288 + ... + 82416.

It is an arithmetic number, because the mean of its divisors is an integer number (8395464).

Almost surely, 2^331773408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331773408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (503727840).

331773408 is an abundant number, since it is smaller than the sum of its proper divisors (675682272).

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

331773408 is a wasteful number, since it uses less digits than its factorization.

331773408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4182 (or 4165 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 331773408 is about 18214.6481711835. The cubic root of 331773408 is about 692.2779909309.

It can be divided in two parts, 33177 and 3408, that added together give a triangular number (36585 = T₂₇₀).

The spelling of 331773408 in words is "three hundred thirty-one million, seven hundred seventy-three thousand, four hundred eight".