2400402051 has 12 divisors (see below), whose sum is σ = 3473043600. Its totient is φ = 1597592880.

The previous prime is 2400402049. The next prime is 2400402073. The reversal of 2400402051 is 1502040042.

It is not a de Polignac number, because 2400402051 - 2¹ = 2400402049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2400402041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 217240 + ... + 228021.

It is an arithmetic number, because the mean of its divisors is an integer number (289420300).

Almost surely, 2^2400402051 is an apocalyptic number.

2400402051 is a deficient number, since it is larger than the sum of its proper divisors (1072641549).

2400402051 is a wasteful number, since it uses less digits than its factorization.

2400402051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445866 (or 445863 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 2400402051 is about 48993.8980996613. The cubic root of 2400402051 is about 1338.9406588197.

Adding to 2400402051 its reverse (1502040042), we get a palindrome (3902442093).

The spelling of 2400402051 in words is "two billion, four hundred million, four hundred two thousand, fifty-one".