402513473 has 4 divisors (see below), whose sum is σ = 402660180. Its totient is φ = 402366768.

The previous prime is 402513457. The next prime is 402513493. The reversal of 402513473 is 374315204.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 212955649 + 189557824 = 14593^2 + 13768^2 .

It is a cyclic number.

It is not a de Polignac number, because 402513473 - 2⁴ = 402513457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402513443) 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 3 ways as a sum of consecutive naturals, for example, 69158 + ... + 74751.

It is an arithmetic number, because the mean of its divisors is an integer number (100665045).

Almost surely, 2^402513473 is an apocalyptic number.

It is an amenable number.

402513473 is a deficient number, since it is larger than the sum of its proper divisors (146707).

402513473 is a wasteful number, since it uses less digits than its factorization.

402513473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146706.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 402513473 is about 20062.7384222593. The cubic root of 402513473 is about 738.3463640770.

Adding to 402513473 its reverse (374315204), we get a palindrome (776828677).

The spelling of 402513473 in words is "four hundred two million, five hundred thirteen thousand, four hundred seventy-three".