83495440 has 40 divisors (see below), whose sum is σ = 221860800. Its totient is φ = 28626816.

The previous prime is 83495413. The next prime is 83495473. The reversal of 83495440 is 4459438.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 83495440.

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, 73990 + ... + 75109.

It is an arithmetic number, because the mean of its divisors is an integer number (5546520).

Almost surely, 2^83495440 is an apocalyptic number.

83495440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

83495440 is an abundant number, since it is smaller than the sum of its proper divisors (138365360).

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

83495440 is a wasteful number, since it uses less digits than its factorization.

83495440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149119 (or 149113 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 83495440 is about 9137.5839257432. The cubic root of 83495440 is about 437.0732753492.

The spelling of 83495440 in words is "eighty-three million, four hundred ninety-five thousand, four hundred forty".