76651840 has 56 divisors (see below), whose sum is σ = 188439552. Its totient is φ = 29667840.

The previous prime is 76651823. The next prime is 76651907. The reversal of 76651840 is 4815667.

It is a self number, because there is not a number n which added to its sum of digits gives 76651840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6057 + ... + 13783.

It is an arithmetic number, because the mean of its divisors is an integer number (3364992).

Almost surely, 2^76651840 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 76651840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94219776).

76651840 is an abundant number, since it is smaller than the sum of its proper divisors (111787712).

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

76651840 is a wasteful number, since it uses less digits than its factorization.

76651840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7775 (or 7765 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 76651840 is about 8755.1036544406. The cubic root of 76651840 is about 424.7899123134.

The spelling of 76651840 in words is "seventy-six million, six hundred fifty-one thousand, eight hundred forty".