2403640100 has 72 divisors (see below), whose sum is σ = 5357657088. Its totient is φ = 935625600.

The previous prime is 2403640091. The next prime is 2403640111. The reversal of 2403640100 is 10463042.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 671315 + ... + 674885.

It is an arithmetic number, because the mean of its divisors is an integer number (74411904).

Almost surely, 2^2403640100 is an apocalyptic number.

2403640100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2403640100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2678828544).

2403640100 is an abundant number, since it is smaller than the sum of its proper divisors (2954016988).

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

2403640100 is a wasteful number, since it uses less digits than its factorization.

2403640100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3765 (or 3758 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2403640100 is about 49026.9323943483. The cubic root of 2403640100 is about 1339.5424479270.

The spelling of 2403640100 in words is "two billion, four hundred three million, six hundred forty thousand, one hundred".