402534454 has 16 divisors (see below), whose sum is σ = 720062208. Its totient is φ = 165013992.

The previous prime is 402534439. The next prime is 402534463. The reversal of 402534454 is 454435204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 624732 + ... + 625375.

It is an arithmetic number, because the mean of its divisors is an integer number (45003888).

Almost surely, 2^402534454 is an apocalyptic number.

402534454 is a deficient number, since it is larger than the sum of its proper divisors (317527754).

402534454 is a wasteful number, since it uses less digits than its factorization.

402534454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250139.

The product of its (nonzero) digits is 38400, while the sum is 31.

The square root of 402534454 is about 20063.2613001974. The cubic root of 402534454 is about 738.3591926132.

Adding to 402534454 its reverse (454435204), we get a palindrome (856969658).

The spelling of 402534454 in words is "four hundred two million, five hundred thirty-four thousand, four hundred fifty-four".