402962489 has 4 divisors (see below), whose sum is σ = 408063360. Its totient is φ = 397861620.

The previous prime is 402962479. The next prime is 402962513. The reversal of 402962489 is 984269204.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402962489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402962479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2550317 + ... + 2550474.

It is an arithmetic number, because the mean of its divisors is an integer number (102015840).

Almost surely, 2^402962489 is an apocalyptic number.

It is an amenable number.

402962489 is a deficient number, since it is larger than the sum of its proper divisors (5100871).

402962489 is an equidigital number, since it uses as much as digits as its factorization.

402962489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5100870.

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 402962489 is about 20073.9256001411. The cubic root of 402962489 is about 738.6208113130.

The spelling of 402962489 in words is "four hundred two million, nine hundred sixty-two thousand, four hundred eighty-nine".