396052521 has 8 divisors (see below), whose sum is σ = 535304160. Its totient is φ = 260417952.

The previous prime is 396052513. The next prime is 396052537. The reversal of 396052521 is 125250693.

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

It is not a de Polignac number, because 396052521 - 2³ = 396052513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (396052541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 904011 + ... + 904448.

It is an arithmetic number, because the mean of its divisors is an integer number (66913020).

Almost surely, 2^396052521 is an apocalyptic number.

It is an amenable number.

396052521 is a deficient number, since it is larger than the sum of its proper divisors (139251639).

396052521 is a wasteful number, since it uses less digits than its factorization.

396052521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1808535.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 396052521 is about 19901.0683381571. The cubic root of 396052521 is about 734.3745097350.

The spelling of 396052521 in words is "three hundred ninety-six million, fifty-two thousand, five hundred twenty-one".