100422790 has 64 divisors (see below), whose sum is σ = 207345600. Its totient is φ = 34712064.

The previous prime is 100422787. The next prime is 100422823. The reversal of 100422790 is 97224001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 269044 + ... + 269416.

It is an arithmetic number, because the mean of its divisors is an integer number (3239775).

Almost surely, 2^100422790 is an apocalyptic number.

100422790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100422790 is an abundant number, since it is smaller than the sum of its proper divisors (106922810).

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

100422790 is a wasteful number, since it uses less digits than its factorization.

100422790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 100422790 is about 10021.1172031865. The cubic root of 100422790 is about 464.8121027566.

Adding to 100422790 its reverse (97224001), we get a palindrome (197646791).

The spelling of 100422790 in words is "one hundred million, four hundred twenty-two thousand, seven hundred ninety".