2400213457 has 2 divisors, whose sum is σ = 2400213458. Its totient is φ = 2400213456.

The previous prime is 2400213383. The next prime is 2400213467. The reversal of 2400213457 is 7543120042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2307457296 + 92756161 = 48036^2 + 9631^2 .

It is a cyclic number.

It is not a de Polignac number, because 2400213457 - 2¹⁵ = 2400180689 is a prime.

It is a super-2 number, since 2×2400213457² = 11522049278327781698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2400213467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1200106728 + 1200106729.

It is an arithmetic number, because the mean of its divisors is an integer number (1200106729).

Almost surely, 2^2400213457 is an apocalyptic number.

It is an amenable number.

2400213457 is a deficient number, since it is larger than the sum of its proper divisors (1).

2400213457 is an equidigital number, since it uses as much as digits as its factorization.

2400213457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 2400213457 is about 48991.9733936081. The cubic root of 2400213457 is about 1338.9055920846.

Adding to 2400213457 its reverse (7543120042), we get a palindrome (9943333499).

The spelling of 2400213457 in words is "two billion, four hundred million, two hundred thirteen thousand, four hundred fifty-seven".