2403994216 has 32 divisors (see below), whose sum is σ = 4881076200. Its totient is φ = 1103397120.

The previous prime is 2403994207. The next prime is 2403994217. The reversal of 2403994216 is 6124993042.

It can be written as a sum of positive squares in 4 ways, for example, as 736905316 + 1667088900 = 27146^2 + 40830^2 .

It is a super-2 number, since 2×2403994216² = 11558376381122909312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2403994217) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 45031 + ... + 82678.

Almost surely, 2^2403994216 is an apocalyptic number.

2403994216 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2403994216 is an abundant number, since it is smaller than the sum of its proper divisors (2477081984).

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

2403994216 is a wasteful number, since it uses less digits than its factorization.

2403994216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127909 (or 127905 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 2403994216 is about 49030.5437049193. The cubic root of 2403994216 is about 1339.6082273422.

The spelling of 2403994216 in words is "two billion, four hundred three million, nine hundred ninety-four thousand, two hundred sixteen".