100620440 has 32 divisors (see below), whose sum is σ = 226763280. Its totient is φ = 40182912.

The previous prime is 100620439. The next prime is 100620491. The reversal of 100620440 is 44026001.

It is a congruent number.

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, 28619 + ... + 31941.

Almost surely, 2^100620440 is an apocalyptic number.

100620440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100620440 is an abundant number, since it is smaller than the sum of its proper divisors (126142840).

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

100620440 is a wasteful number, since it uses less digits than its factorization.

100620440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4091 (or 4087 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 100620440 is about 10030.9740304718. The cubic root of 100620440 is about 465.1168473458.

Adding to 100620440 its reverse (44026001), we get a palindrome (144646441).

The spelling of 100620440 in words is "one hundred million, six hundred twenty thousand, four hundred forty".