1402310421 has 24 divisors (see below), whose sum is σ = 2107374080. Its totient is φ = 921616920.

The previous prime is 1402310387. The next prime is 1402310423. The reversal of 1402310421 is 1240132041.

1402310421 is a `hidden beast` number, since 14 + 0 + 231 + 0 + 421 = 666.

It is not a de Polignac number, because 1402310421 - 2¹⁷ = 1402179349 is a prime.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1402310394 and 1402310403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402310423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 130956 + ... + 141258.

Almost surely, 2^1402310421 is an apocalyptic number.

It is an amenable number.

1402310421 is a deficient number, since it is larger than the sum of its proper divisors (705063659).

1402310421 is an equidigital number, since it uses as much as digits as its factorization.

1402310421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10454 (or 10377 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1402310421 is about 37447.4354395598. The cubic root of 1402310421 is about 1119.3039949181.

Adding to 1402310421 its reverse (1240132041), we get a palindrome (2642442462).

The spelling of 1402310421 in words is "one billion, four hundred two million, three hundred ten thousand, four hundred twenty-one".