100299540 has 48 divisors (see below), whose sum is σ = 306371520. Its totient is φ = 24314880.

The previous prime is 100299533. The next prime is 100299559. The reversal of 100299540 is 45992001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 100299498 and 100299507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75325 + ... + 76644.

It is an arithmetic number, because the mean of its divisors is an integer number (6382740).

Almost surely, 2^100299540 is an apocalyptic number.

100299540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100299540 is an abundant number, since it is smaller than the sum of its proper divisors (206071980).

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

100299540 is a wasteful number, since it uses less digits than its factorization.

100299540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151992 (or 151990 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 100299540 is about 10014.9658012397. The cubic root of 100299540 is about 464.6218685663.

The spelling of 100299540 in words is "one hundred million, two hundred ninety-nine thousand, five hundred forty".