100313440 has 24 divisors (see below), whose sum is σ = 236990880. Its totient is φ = 40125312.

The previous prime is 100313431. The next prime is 100313459. The reversal of 100313440 is 44313001.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313320 + ... + 313639.

It is an arithmetic number, because the mean of its divisors is an integer number (9874620).

Almost surely, 2^100313440 is an apocalyptic number.

100313440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100313440 is an abundant number, since it is smaller than the sum of its proper divisors (136677440).

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

100313440 is an equidigital number, since it uses as much as digits as its factorization.

100313440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626974 (or 626966 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 100313440 is about 10015.6597386293. The cubic root of 100313440 is about 464.6433307640.

Adding to 100313440 its reverse (44313001), we get a palindrome (144626441).

The spelling of 100313440 in words is "one hundred million, three hundred thirteen thousand, four hundred forty".