402452543 has 4 divisors (see below), whose sum is σ = 426126240. Its totient is φ = 378778848.

The previous prime is 402452537. The next prime is 402452581. The reversal of 402452543 is 345254204.

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

It is a cyclic number.

It is not a de Polignac number, because 402452543 - 2⁸ = 402452287 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 (402452503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11836823 + ... + 11836856.

It is an arithmetic number, because the mean of its divisors is an integer number (106531560).

Almost surely, 2^402452543 is an apocalyptic number.

402452543 is a deficient number, since it is larger than the sum of its proper divisors (23673697).

402452543 is a wasteful number, since it uses less digits than its factorization.

402452543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23673696.

The product of its (nonzero) digits is 19200, while the sum is 29.

The square root of 402452543 is about 20061.2198781629. The cubic root of 402452543 is about 738.3091067617.

The spelling of 402452543 in words is "four hundred two million, four hundred fifty-two thousand, five hundred forty-three".