76172340 has 48 divisors (see below), whose sum is σ = 214276608. Its totient is φ = 20217984.

The previous prime is 76172339. The next prime is 76172351. The reversal of 76172340 is 4327167.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 76172298 and 76172307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10534 + ... + 16226.

It is an arithmetic number, because the mean of its divisors is an integer number (4464096).

Almost surely, 2^76172340 is an apocalyptic number.

It is an amenable number.

76172340 is an abundant number, since it is smaller than the sum of its proper divisors (138104268).

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

76172340 is a wasteful number, since it uses less digits than its factorization.

76172340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5928 (or 5926 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 76172340 is about 8727.6766667882. The cubic root of 76172340 is about 423.9022929601.

The spelling of 76172340 in words is "seventy-six million, one hundred seventy-two thousand, three hundred forty".