2400772121 has 16 divisors (see below), whose sum is σ = 2716486848. Its totient is φ = 2102472000.

The previous prime is 2400772013. The next prime is 2400772141. The reversal of 2400772121 is 1212770042.

It is a cyclic number.

It is not a de Polignac number, because 2400772121 - 2¹⁰ = 2400771097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2400772141) 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 15 ways as a sum of consecutive naturals, for example, 11906 + ... + 70308.

It is an arithmetic number, because the mean of its divisors is an integer number (169780428).

Almost surely, 2^2400772121 is an apocalyptic number.

It is an amenable number.

2400772121 is a deficient number, since it is larger than the sum of its proper divisors (315714727).

2400772121 is a wasteful number, since it uses less digits than its factorization.

2400772121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58552.

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 2400772121 is about 48997.6746489055. The cubic root of 2400772121 is about 1339.0094634473.

The spelling of 2400772121 in words is "two billion, four hundred million, seven hundred seventy-two thousand, one hundred twenty-one".