83478340 has 48 divisors (see below), whose sum is σ = 191862720. Its totient is φ = 30257280.

The previous prime is 83478323. The next prime is 83478361. The reversal of 83478340 is 4387438.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 83478340.

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, 134551 + ... + 135169.

It is an arithmetic number, because the mean of its divisors is an integer number (3997140).

Almost surely, 2^83478340 is an apocalyptic number.

It is an amenable number.

83478340 is an abundant number, since it is smaller than the sum of its proper divisors (108384380).

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

83478340 is a wasteful number, since it uses less digits than its factorization.

83478340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252 (or 1250 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 83478340 is about 9136.6481819100. The cubic root of 83478340 is about 437.0434355428.

The spelling of 83478340 in words is "eighty-three million, four hundred seventy-eight thousand, three hundred forty".