521042416 has 10 divisors (see below), whose sum is σ = 1009519712. Its totient is φ = 260521200.

The previous prime is 521042383. The next prime is 521042441. The reversal of 521042416 is 614240125.

It is a happy number.

It is a super-2 number, since 2×521042416² = 542970398542234112, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16282560 + ... + 16282591.

Almost surely, 2^521042416 is an apocalyptic number.

It is an amenable number.

521042416 is a deficient number, since it is larger than the sum of its proper divisors (488477296).

521042416 is a wasteful number, since it uses less digits than its factorization.

521042416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32565159 (or 32565153 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 521042416 is about 22826.3535414661. The cubic root of 521042416 is about 804.6821352187.

The spelling of 521042416 in words is "five hundred twenty-one million, forty-two thousand, four hundred sixteen".