1402421473 has 2 divisors, whose sum is σ = 1402421474. Its totient is φ = 1402421472.

The previous prime is 1402421459. The next prime is 1402421507. The reversal of 1402421473 is 3741242041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1162264464 + 240157009 = 34092^2 + 15497^2 .

It is an emirp because it is prime and its reverse (3741242041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1402421473 - 2¹⁷ = 1402290401 is a prime.

It is not a weakly prime, because it can be changed into another prime (1402421413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701210736 + 701210737.

It is an arithmetic number, because the mean of its divisors is an integer number (701210737).

Almost surely, 2^1402421473 is an apocalyptic number.

It is an amenable number.

1402421473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1402421473 is an equidigital number, since it uses as much as digits as its factorization.

1402421473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 1402421473 is about 37448.9181819716. The cubic root of 1402421473 is about 1119.3335408408. Note that the first 3 decimals are identical.

The spelling of 1402421473 in words is "one billion, four hundred two million, four hundred twenty-one thousand, four hundred seventy-three".