83403040 has 96 divisors (see below), whose sum is σ = 227525760. Its totient is φ = 28299264.

The previous prime is 83403031. The next prime is 83403053. The reversal of 83403040 is 4030438.

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, 126231 + ... + 126889.

It is an arithmetic number, because the mean of its divisors is an integer number (2370060).

Almost surely, 2^83403040 is an apocalyptic number.

83403040 is a gapful number since it is divisible by the number (80) 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 83403040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113762880).

83403040 is an abundant number, since it is smaller than the sum of its proper divisors (144122720).

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

83403040 is a wasteful number, since it uses less digits than its factorization.

83403040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794 (or 786 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 83403040 is about 9132.5264850424. The cubic root of 83403040 is about 436.9119871905.

Adding to 83403040 its reverse (4030438), we get a palindrome (87433478).

The spelling of 83403040 in words is "eighty-three million, four hundred three thousand, forty".