76242644 has 12 divisors (see below), whose sum is σ = 137030964. Its totient is φ = 37090944.

The previous prime is 76242623. The next prime is 76242667. The reversal of 76242644 is 44624267.

It can be written as a sum of positive squares in 2 ways, for example, as 26399044 + 49843600 = 5138^2 + 7060^2 .

It is a super-2 number, since 2×76242644² = 11625881528221472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257429 + ... + 257724.

It is an arithmetic number, because the mean of its divisors is an integer number (11419247).

Almost surely, 2^76242644 is an apocalyptic number.

76242644 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

76242644 is a deficient number, since it is larger than the sum of its proper divisors (60788320).

76242644 is a wasteful number, since it uses less digits than its factorization.

76242644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515194 (or 515192 counting only the distinct ones).

The product of its digits is 64512, while the sum is 35.

The square root of 76242644 is about 8731.7033847927. The cubic root of 76242644 is about 424.0326677690.

The spelling of 76242644 in words is "seventy-six million, two hundred forty-two thousand, six hundred forty-four".