1402062421 has 4 divisors (see below), whose sum is σ = 1475855200. Its totient is φ = 1328269644.

The previous prime is 1402062419. The next prime is 1402062427. The reversal of 1402062421 is 1242602041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1242602041 = 1303 ⋅953647.

It is a cyclic number.

It is not a de Polignac number, because 1402062421 - 2¹ = 1402062419 is a prime.

It is a super-3 number, since 3×1402062421³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1402062392 and 1402062401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402062427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36896361 + ... + 36896398.

It is an arithmetic number, because the mean of its divisors is an integer number (368963800).

Almost surely, 2^1402062421 is an apocalyptic number.

It is an amenable number.

1402062421 is a deficient number, since it is larger than the sum of its proper divisors (73792779).

1402062421 is an equidigital number, since it uses as much as digits as its factorization.

1402062421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73792778.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1402062421 is about 37444.1239849459. The cubic root of 1402062421 is about 1119.2380076844.

Adding to 1402062421 its reverse (1242602041), we get a palindrome (2644664462).

The spelling of 1402062421 in words is "one billion, four hundred two million, sixty-two thousand, four hundred twenty-one".