332506645 has 16 divisors (see below), whose sum is σ = 404583408. Its totient is φ = 262310400.

The previous prime is 332506639. The next prime is 332506661. The reversal of 332506645 is 546605233.

It can be written as a sum of positive squares in 8 ways, for example, as 27889 + 332478756 = 167^2 + 18234^2 .

It is not a de Polignac number, because 332506645 - 2⁵ = 332506613 is a prime.

It is a super-2 number, since 2×332506645² = 221121337938312050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 332506645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138697 + ... + 141073.

It is an arithmetic number, because the mean of its divisors is an integer number (25286463).

Almost surely, 2^332506645 is an apocalyptic number.

It is an amenable number.

332506645 is a deficient number, since it is larger than the sum of its proper divisors (72076763).

332506645 is a wasteful number, since it uses less digits than its factorization.

332506645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2760.

The product of its (nonzero) digits is 64800, while the sum is 34.

The square root of 332506645 is about 18234.7647366233. The cubic root of 332506645 is about 692.7876061679.

The spelling of 332506645 in words is "three hundred thirty-two million, five hundred six thousand, six hundred forty-five".