100261788 has 24 divisors (see below), whose sum is σ = 255212160. Its totient is φ = 30382320.

The previous prime is 100261757. The next prime is 100261813. The reversal of 100261788 is 887162001.

It is a happy number.

It is a super-2 number, since 2×100261788² = 20104852265913888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379648 + ... + 379911.

It is an arithmetic number, because the mean of its divisors is an integer number (10633840).

Almost surely, 2^100261788 is an apocalyptic number.

It is an amenable number.

100261788 is an abundant number, since it is smaller than the sum of its proper divisors (154950372).

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

100261788 is a wasteful number, since it uses less digits than its factorization.

100261788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759577 (or 759575 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 100261788 is about 10013.0808445753. The cubic root of 100261788 is about 464.5635678472.

The spelling of 100261788 in words is "one hundred million, two hundred sixty-one thousand, seven hundred eighty-eight".