1402037393 has 4 divisors (see below), whose sum is σ = 1450383540. Its totient is φ = 1353691248.

The previous prime is 1402037323. The next prime is 1402037407. The reversal of 1402037393 is 3937302041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3937302041 = 1193 ⋅3300337.

It can be written as a sum of positive squares in 2 ways, for example, as 405498769 + 996538624 = 20137^2 + 31568^2 .

It is a cyclic number.

It is not a de Polignac number, because 1402037393 - 2²⁰ = 1400988817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1402037323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24173030 + ... + 24173087.

It is an arithmetic number, because the mean of its divisors is an integer number (362595885).

Almost surely, 2^1402037393 is an apocalyptic number.

It is an amenable number.

1402037393 is a deficient number, since it is larger than the sum of its proper divisors (48346147).

1402037393 is an equidigital number, since it uses as much as digits as its factorization.

1402037393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48346146.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 1402037393 is about 37443.7897788138. The cubic root of 1402037393 is about 1119.2313478631.

The spelling of 1402037393 in words is "one billion, four hundred two million, thirty-seven thousand, three hundred ninety-three".