100034780 has 12 divisors (see below), whose sum is σ = 210073080. Its totient is φ = 40013904.

The previous prime is 100034771. The next prime is 100034789. The reversal of 100034780 is 87430001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (100034771) and next prime (100034789).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100034789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2500850 + ... + 2500889.

It is an arithmetic number, because the mean of its divisors is an integer number (17506090).

Almost surely, 2^100034780 is an apocalyptic number.

100034780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100034780 is an abundant number, since it is smaller than the sum of its proper divisors (110038300).

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

100034780 is a wasteful number, since it uses less digits than its factorization.

100034780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5001748 (or 5001746 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 100034780 is about 10001.7388488202. The cubic root of 100034780 is about 464.2126886105.

Adding to 100034780 its reverse (87430001), we get a palindrome (187464781).

The spelling of 100034780 in words is "one hundred million, thirty-four thousand, seven hundred eighty".