402973443 has 24 divisors (see below), whose sum is σ = 592308288. Its totient is φ = 263946672.

The previous prime is 402973429. The next prime is 402973453. The reversal of 402973443 is 344379204.

It is not a de Polignac number, because 402973443 - 2⁴ = 402973427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 402973398 and 402973407.

It is not an unprimeable number, because it can be changed into a prime (402973453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 338896 + ... + 340082.

It is an arithmetic number, because the mean of its divisors is an integer number (24679512).

Almost surely, 2^402973443 is an apocalyptic number.

402973443 is a deficient number, since it is larger than the sum of its proper divisors (189334845).

402973443 is a wasteful number, since it uses less digits than its factorization.

402973443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1823 (or 1820 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 402973443 is about 20074.1984397883. The cubic root of 402973443 is about 738.6275040609.

The spelling of 402973443 in words is "four hundred two million, nine hundred seventy-three thousand, four hundred forty-three".