1402302421 has 16 divisors (see below), whose sum is σ = 1525724928. Its totient is φ = 1281168000.

The previous prime is 1402302397. The next prime is 1402302427. The reversal of 1402302421 is 1242032041.

It is a cyclic number.

It is not a de Polignac number, because 1402302421 - 2¹⁵ = 1402269653 is a prime.

It is a super-2 number, since 2×1402302421² = 3932904159884922482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402302427) 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 15 ways as a sum of consecutive naturals, for example, 609345 + ... + 611641.

It is an arithmetic number, because the mean of its divisors is an integer number (95357808).

Almost surely, 2^1402302421 is an apocalyptic number.

It is an amenable number.

1402302421 is a deficient number, since it is larger than the sum of its proper divisors (123422507).

1402302421 is a wasteful number, since it uses less digits than its factorization.

1402302421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2772.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1402302421 is about 37447.3286230140. The cubic root of 1402302421 is about 1119.3018664191.

Adding to 1402302421 its reverse (1242032041), we get a palindrome (2644334462).

The spelling of 1402302421 in words is "one billion, four hundred two million, three hundred two thousand, four hundred twenty-one".