1402690437 has 6 divisors (see below), whose sum is σ = 2026108422. Its totient is φ = 935126952.

The previous prime is 1402690433. The next prime is 1402690441. The reversal of 1402690437 is 7340962041.

It is an interprime number because it is at equal distance from previous prime (1402690433) and next prime (1402690441).

It can be written as a sum of positive squares in only one way, i.e., 1104299361 + 298391076 = 33231^2 + 17274^2 .

It is not a de Polignac number, because 1402690437 - 2² = 1402690433 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402690433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77927238 + ... + 77927255.

It is an arithmetic number, because the mean of its divisors is an integer number (337684737).

Almost surely, 2^1402690437 is an apocalyptic number.

It is an amenable number.

1402690437 is a deficient number, since it is larger than the sum of its proper divisors (623417985).

1402690437 is a wasteful number, since it uses less digits than its factorization.

1402690437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155854499 (or 155854496 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 1402690437 is about 37452.5090881773. The cubic root of 1402690437 is about 1119.4050935535.

The spelling of 1402690437 in words is "one billion, four hundred two million, six hundred ninety thousand, four hundred thirty-seven".