100402620 has 24 divisors (see below), whose sum is σ = 281127504. Its totient is φ = 26774016.

The previous prime is 100402597. The next prime is 100402633. The reversal of 100402620 is 26204001.

It is a super-2 number, since 2×100402620² = 20161372205728800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 100402620.

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, 836629 + ... + 836748.

It is an arithmetic number, because the mean of its divisors is an integer number (11713646).

Almost surely, 2^100402620 is an apocalyptic number.

100402620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100402620 is an abundant number, since it is smaller than the sum of its proper divisors (180724884).

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

100402620 is a wasteful number, since it uses less digits than its factorization.

100402620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673389 (or 1673387 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 100402620 is about 10020.1107778308. The cubic root of 100402620 is about 464.7809813752.

Adding to 100402620 its reverse (26204001), we get a palindrome (126606621).

The spelling of 100402620 in words is "one hundred million, four hundred two thousand, six hundred twenty".