76403740 has 72 divisors (see below), whose sum is σ = 190294272. Its totient is φ = 25683840.

The previous prime is 76403689. The next prime is 76403783. The reversal of 76403740 is 4730467.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51205 + ... + 52675.

It is an arithmetic number, because the mean of its divisors is an integer number (2642976).

Almost surely, 2^76403740 is an apocalyptic number.

76403740 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76403740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95147136).

76403740 is an abundant number, since it is smaller than the sum of its proper divisors (113890532).

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

76403740 is a wasteful number, since it uses less digits than its factorization.

76403740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1547 (or 1538 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 76403740 is about 8740.9232921929. The cubic root of 76403740 is about 424.3311092880.

The spelling of 76403740 in words is "seventy-six million, four hundred three thousand, seven hundred forty".