521946476 has 12 divisors (see below), whose sum is σ = 918877008. Its totient is φ = 259410192.

The previous prime is 521946433. The next prime is 521946479. The reversal of 521946476 is 674649125.

It is not an unprimeable number, because it can be changed into a prime (521946479) 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, 390011 + ... + 391346.

It is an arithmetic number, because the mean of its divisors is an integer number (76573084).

Almost surely, 2^521946476 is an apocalyptic number.

It is an amenable number.

521946476 is a deficient number, since it is larger than the sum of its proper divisors (396930532).

521946476 is a wasteful number, since it uses less digits than its factorization.

521946476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781528 (or 781526 counting only the distinct ones).

The product of its digits is 362880, while the sum is 44.

The square root of 521946476 is about 22846.1479466452. The cubic root of 521946476 is about 805.1472672717.

The spelling of 521946476 in words is "five hundred twenty-one million, nine hundred forty-six thousand, four hundred seventy-six".