402290373 has 16 divisors (see below), whose sum is σ = 542653056. Its totient is φ = 265070400.

The previous prime is 402290321. The next prime is 402290377. The reversal of 402290373 is 373092204.

It is a de Polignac number, because none of the positive numbers 2^k-402290373 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 402290373.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402290377) 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, 292315 + ... + 293687.

It is an arithmetic number, because the mean of its divisors is an integer number (33915816).

Almost surely, 2^402290373 is an apocalyptic number.

It is an amenable number.

402290373 is a deficient number, since it is larger than the sum of its proper divisors (140362683).

402290373 is a wasteful number, since it uses less digits than its factorization.

402290373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2444.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 402290373 is about 20057.1775930713. The cubic root of 402290373 is about 738.2099251517.

It can be divided in two parts, 4022 and 90373, that added together give a triangular number (94395 = T₄₃₄).

The spelling of 402290373 in words is "four hundred two million, two hundred ninety thousand, three hundred seventy-three".