402675493 has 16 divisors (see below), whose sum is σ = 464443200. Its totient is φ = 345271680.

The previous prime is 402675491. The next prime is 402675509. The reversal of 402675493 is 394576204.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 402675493 - 2¹ = 402675491 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402675491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44563 + ... + 52831.

It is an arithmetic number, because the mean of its divisors is an integer number (29027700).

Almost surely, 2^402675493 is an apocalyptic number.

It is an amenable number.

402675493 is a deficient number, since it is larger than the sum of its proper divisors (61767707).

402675493 is a wasteful number, since it uses less digits than its factorization.

402675493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8532.

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 402675493 is about 20066.7758496476. The cubic root of 402675493 is about 738.4454173500.

The spelling of 402675493 in words is "four hundred two million, six hundred seventy-five thousand, four hundred ninety-three".