76478140 has 24 divisors (see below), whose sum is σ = 163239552. Its totient is φ = 30089280.

The previous prime is 76478089. The next prime is 76478153. The reversal of 76478140 is 4187467.

It is a self number, because there is not a number n which added to its sum of digits gives 76478140.

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, 30124 + ... + 32563.

It is an arithmetic number, because the mean of its divisors is an integer number (6801648).

Almost surely, 2^76478140 is an apocalyptic number.

It is an amenable number.

76478140 is an abundant number, since it is smaller than the sum of its proper divisors (86761412).

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

76478140 is a wasteful number, since it uses less digits than its factorization.

76478140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62757 (or 62755 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 76478140 is about 8745.1780999589. The cubic root of 76478140 is about 424.4687988507.

The spelling of 76478140 in words is "seventy-six million, four hundred seventy-eight thousand, one hundred forty".