100501040 has 40 divisors (see below), whose sum is σ = 238645440. Its totient is φ = 39343616.

The previous prime is 100501033. The next prime is 100501043. The reversal of 100501040 is 40105001.

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

It is not an unprimeable number, because it can be changed into a prime (100501043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9605 + ... + 17124.

It is an arithmetic number, because the mean of its divisors is an integer number (5966136).

Almost surely, 2^100501040 is an apocalyptic number.

100501040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100501040 is an abundant number, since it is smaller than the sum of its proper divisors (138144400).

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

100501040 is a wasteful number, since it uses less digits than its factorization.

100501040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26789 (or 26783 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 100501040 is about 10025.0206982330. The cubic root of 100501040 is about 464.9327994768.

Adding to 100501040 its reverse (40105001), we get a palindrome (140606041).

The spelling of 100501040 in words is "one hundred million, five hundred one thousand, forty".