402154343 has 4 divisors (see below), whose sum is σ = 403464600. Its totient is φ = 400844088.

The previous prime is 402154331. The next prime is 402154367. The reversal of 402154343 is 343451204.

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 402154343 - 2⁴ = 402154327 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 (402154303) 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, 654668 + ... + 655281.

It is an arithmetic number, because the mean of its divisors is an integer number (100866150).

Almost surely, 2^402154343 is an apocalyptic number.

402154343 is a deficient number, since it is larger than the sum of its proper divisors (1310257).

402154343 is a wasteful number, since it uses less digits than its factorization.

402154343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310256.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 402154343 is about 20053.7862509801. The cubic root of 402154343 is about 738.1267099557.

The spelling of 402154343 in words is "four hundred two million, one hundred fifty-four thousand, three hundred forty-three".