331428766 has 8 divisors (see below), whose sum is σ = 504563400. Its totient is φ = 163240968.

The previous prime is 331428763. The next prime is 331428767. The reversal of 331428766 is 667824133.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331428763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1236541 + ... + 1236808.

It is an arithmetic number, because the mean of its divisors is an integer number (63070425).

Almost surely, 2^331428766 is an apocalyptic number.

331428766 is a deficient number, since it is larger than the sum of its proper divisors (173134634).

331428766 is a wasteful number, since it uses less digits than its factorization.

331428766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2473418.

The product of its digits is 145152, while the sum is 40.

The square root of 331428766 is about 18205.1851405032. The cubic root of 331428766 is about 692.0381980206.

The spelling of 331428766 in words is "three hundred thirty-one million, four hundred twenty-eight thousand, seven hundred sixty-six".