402403497 has 8 divisors (see below), whose sum is σ = 536672256. Its totient is φ = 268201872.

The previous prime is 402403439. The next prime is 402403517. The reversal of 402403497 is 794304204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 402403497 - 2⁷ = 402403369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402403597) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 553 + ... + 28374.

It is an arithmetic number, because the mean of its divisors is an integer number (67084032).

Almost surely, 2^402403497 is an apocalyptic number.

It is an amenable number.

402403497 is a deficient number, since it is larger than the sum of its proper divisors (134268759).

402403497 is a wasteful number, since it uses less digits than its factorization.

402403497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33567.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 402403497 is about 20059.9974327017. The cubic root of 402403497 is about 738.2791135115.

The spelling of 402403497 in words is "four hundred two million, four hundred three thousand, four hundred ninety-seven".