331070490 has 96 divisors (see below), whose sum is σ = 914711616. Its totient is φ = 86106240.

The previous prime is 331070473. The next prime is 331070513. The reversal of 331070490 is 94070133.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon 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 47 ways as a sum of consecutive naturals, for example, 97969 + ... + 101291.

It is an arithmetic number, because the mean of its divisors is an integer number (9528246).

Almost surely, 2^331070490 is an apocalyptic number.

331070490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 331070490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (457355808).

331070490 is an abundant number, since it is smaller than the sum of its proper divisors (583641126).

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

331070490 is a wasteful number, since it uses less digits than its factorization.

331070490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3386 (or 3374 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 331070490 is about 18195.3425359348. The cubic root of 331070490 is about 691.7887426341.

The spelling of 331070490 in words is "three hundred thirty-one million, seventy thousand, four hundred ninety".