100402393 has 12 divisors (see below), whose sum is σ = 124252608. Its totient is φ = 79438320.

The previous prime is 100402369. The next prime is 100402409. The reversal of 100402393 is 393204001.

It is a de Polignac number, because none of the positive numbers 2^k-100402393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100402303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41253 + ... + 43618.

It is an arithmetic number, because the mean of its divisors is an integer number (10354384).

Almost surely, 2^100402393 is an apocalyptic number.

100402393 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

100402393 is a deficient number, since it is larger than the sum of its proper divisors (23850215).

100402393 is an equidigital number, since it uses as much as digits as its factorization.

100402393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84904 (or 84891 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 100402393 is about 10020.0994506043. The cubic root of 100402393 is about 464.7806311009.

Adding to 100402393 its reverse (393204001), we get a palindrome (493606394).

The spelling of 100402393 in words is "one hundred million, four hundred two thousand, three hundred ninety-three".