83501040 has 160 divisors (see below), whose sum is σ = 308837376. Its totient is φ = 18247680.

The previous prime is 83501027. The next prime is 83501081. The reversal of 83501040 is 4010538.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 83500998 and 83501016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37560 + ... + 39720.

Almost surely, 2^83501040 is an apocalyptic number.

83501040 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 83501040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154418688).

83501040 is an abundant number, since it is smaller than the sum of its proper divisors (225336336).

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

83501040 is a wasteful number, since it uses less digits than its factorization.

83501040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2207 (or 2201 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 83501040 is about 9137.8903473395. The cubic root of 83501040 is about 437.0830465639.

Adding to 83501040 its reverse (4010538), we get a palindrome (87511578).

The spelling of 83501040 in words is "eighty-three million, five hundred one thousand, forty".