76522240 has 72 divisors (see below), whose sum is σ = 184843008. Its totient is φ = 30351360.

The previous prime is 76522211. The next prime is 76522247. The reversal of 76522240 is 4222567.

It is a junction number, because it is equal to n+sod(n) for n = 76522199 and 76522208.

It is not an unprimeable number, because it can be changed into a prime (76522247) 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, 244324 + ... + 244636.

It is an arithmetic number, because the mean of its divisors is an integer number (2567264).

Almost surely, 2^76522240 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 76522240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92421504).

76522240 is an abundant number, since it is smaller than the sum of its proper divisors (108320768).

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

76522240 is a wasteful number, since it uses less digits than its factorization.

76522240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525 (or 511 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 76522240 is about 8747.6991260559. The cubic root of 76522240 is about 424.5503710801.

It can be divided in two parts, 765 and 22240, that added together give a triangular number (23005 = T₂₁₄).

The spelling of 76522240 in words is "seventy-six million, five hundred twenty-two thousand, two hundred forty".