2239516401 has 4 divisors (see below), whose sum is σ = 2986021872. Its totient is φ = 1493010932.

The previous prime is 2239516381. The next prime is 2239516451. The reversal of 2239516401 is 1046159322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2239516401 - 2⁶ = 2239516337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2239516451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 373252731 + ... + 373252736.

It is an arithmetic number, because the mean of its divisors is an integer number (746505468).

Almost surely, 2^2239516401 is an apocalyptic number.

It is an amenable number.

2239516401 is a deficient number, since it is larger than the sum of its proper divisors (746505471).

2239516401 is an equidigital number, since it uses as much as digits as its factorization.

2239516401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746505470.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 2239516401 is about 47323.5290421160. The cubic root of 2239516401 is about 1308.3323575130.

The spelling of 2239516401 in words is "two billion, two hundred thirty-nine million, five hundred sixteen thousand, four hundred one".