76284840 has 32 divisors (see below), whose sum is σ = 228854880. Its totient is φ = 20342592.

The previous prime is 76284823. The next prime is 76284847. The reversal of 76284840 is 4848267.

It is not an unprimeable number, because it can be changed into a prime (76284847) 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, 317734 + ... + 317973.

It is an arithmetic number, because the mean of its divisors is an integer number (7151715).

Almost surely, 2^76284840 is an apocalyptic number.

It is an amenable number.

76284840 is an abundant number, since it is smaller than the sum of its proper divisors (152570040).

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

76284840 is a wasteful number, since it uses less digits than its factorization.

76284840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635721 (or 635717 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 76284840 is about 8734.1193030551. The cubic root of 76284840 is about 424.1108793913.

The spelling of 76284840 in words is "seventy-six million, two hundred eighty-four thousand, eight hundred forty".