100032790 has 48 divisors (see below), whose sum is σ = 212739696. Its totient is φ = 33571200.

The previous prime is 100032781. The next prime is 100032791. The reversal of 100032790 is 97230001.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100032791) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15900 + ... + 21280.

It is an arithmetic number, because the mean of its divisors is an integer number (4432077).

Almost surely, 2^100032790 is an apocalyptic number.

100032790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100032790 is an abundant number, since it is smaller than the sum of its proper divisors (112706906).

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

100032790 is a wasteful number, since it uses less digits than its factorization.

100032790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5425 (or 5412 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 100032790 is about 10001.6393656240. The cubic root of 100032790 is about 464.2096103832.

Adding to 100032790 its reverse (97230001), we get a palindrome (197262791).

The spelling of 100032790 in words is "one hundred million, thirty-two thousand, seven hundred ninety".