521414432 has 96 divisors (see below), whose sum is σ = 1324149120. Its totient is φ = 196116480.

The previous prime is 521414423. The next prime is 521414441. The reversal of 521414432 is 234414125.

It is an interprime number because it is at equal distance from previous prime (521414423) and next prime (521414441).

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, 67808 + ... + 75104.

It is an arithmetic number, because the mean of its divisors is an integer number (13793220).

Almost surely, 2^521414432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 521414432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (662074560).

521414432 is an abundant number, since it is smaller than the sum of its proper divisors (802734688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

521414432 is a wasteful number, since it uses less digits than its factorization.

521414432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7354 (or 7346 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 521414432 is about 22834.5009141868. The cubic root of 521414432 is about 804.8735997415.

Adding to 521414432 its reverse (234414125), we get a palindrome (755828557).

The spelling of 521414432 in words is "five hundred twenty-one million, four hundred fourteen thousand, four hundred thirty-two".