2402633421 has 20 divisors (see below), whose sum is σ = 3604819900. Its totient is φ = 1594748736.

The previous prime is 2402633419. The next prime is 2402633437. The reversal of 2402633421 is 1243362042.

2402633421 is a `hidden beast` number, since 2 + 4 + 0 + 2 + 633 + 4 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2131668900 + 270964521 = 46170^2 + 16461^2 .

It is not a de Polignac number, because 2402633421 - 2¹ = 2402633419 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (2402631421) 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 19 ways as a sum of consecutive naturals, for example, 46216 + ... + 83313.

It is an arithmetic number, because the mean of its divisors is an integer number (180240995).

Almost surely, 2^2402633421 is an apocalyptic number.

It is an amenable number.

2402633421 is a deficient number, since it is larger than the sum of its proper divisors (1202186479).

2402633421 is a wasteful number, since it uses less digits than its factorization.

2402633421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129770 (or 129761 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 2402633421 is about 49016.6647274169. The cubic root of 2402633421 is about 1339.3554152744.

Adding to 2402633421 its reverse (1243362042), we get a palindrome (3645995463).

The spelling of 2402633421 in words is "two billion, four hundred two million, six hundred thirty-three thousand, four hundred twenty-one".