76378444 has 6 divisors (see below), whose sum is σ = 133662284. Its totient is φ = 38189220.

The previous prime is 76378441. The next prime is 76378453. The reversal of 76378444 is 44487367.

It is a super-2 number, since 2×76378444² = 11667333415722272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 76378444.

It is not an unprimeable number, because it can be changed into a prime (76378441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9547302 + ... + 9547309.

Almost surely, 2^76378444 is an apocalyptic number.

It is an amenable number.

76378444 is a deficient number, since it is larger than the sum of its proper divisors (57283840).

76378444 is a wasteful number, since it uses less digits than its factorization.

76378444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19094615 (or 19094613 counting only the distinct ones).

The product of its digits is 451584, while the sum is 43.

The square root of 76378444 is about 8739.4761856761. The cubic root of 76378444 is about 424.2842744753.

The spelling of 76378444 in words is "seventy-six million, three hundred seventy-eight thousand, four hundred forty-four".