331949406 has 8 divisors (see below), whose sum is σ = 663898824. Its totient is φ = 110649800.

The previous prime is 331949357. The next prime is 331949413. The reversal of 331949406 is 604949133.

It is a sphenic number, since it is the product of 3 distinct primes.

331949406 is an admirable number.

It is a super-2 number, since 2×331949406² = 220380816287505672, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27662445 + ... + 27662456.

It is an arithmetic number, because the mean of its divisors is an integer number (82987353).

Almost surely, 2^331949406 is an apocalyptic number.

331949406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

331949406 is a wasteful number, since it uses less digits than its factorization.

331949406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55324906.

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 331949406 is about 18219.4787521488. The cubic root of 331949406 is about 692.4003816961.

It can be divided in two parts, 3319 and 49406, that added together give a palindrome (52725).

The spelling of 331949406 in words is "three hundred thirty-one million, nine hundred forty-nine thousand, four hundred six".