2456412021 has 64 divisors (see below), whose sum is σ = 4212736000. Its totient is φ = 1385683200.

The previous prime is 2456412019. The next prime is 2456412043. The reversal of 2456412021 is 1202146542.

2456412021 is a `hidden beast` number, since 2 + 456 + 4 + 1 + 202 + 1 = 666.

It is not a de Polignac number, because 2456412021 - 2¹ = 2456412019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2456412071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9064116 + ... + 9064386.

It is an arithmetic number, because the mean of its divisors is an integer number (65824000).

Almost surely, 2^2456412021 is an apocalyptic number.

2456412021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2456412021 is a deficient number, since it is larger than the sum of its proper divisors (1756323979).

2456412021 is a wasteful number, since it uses less digits than its factorization.

2456412021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727 (or 721 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 2456412021 is about 49562.2035527074. The cubic root of 2456412021 is about 1349.2747857964.

Adding to 2456412021 its reverse (1202146542), we get a palindrome (3658558563).

It can be divided in two parts, 24564 and 12021, that added together give a triangular number (36585 = T₂₇₀).

The spelling of 2456412021 in words is "two billion, four hundred fifty-six million, four hundred twelve thousand, twenty-one".