400352343 has 4 divisors (see below), whose sum is σ = 533803128. Its totient is φ = 266901560.

The previous prime is 400352339. The next prime is 400352371. The reversal of 400352343 is 343253004.

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 400352343 - 2² = 400352339 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400350343) 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, 66725388 + ... + 66725393.

It is an arithmetic number, because the mean of its divisors is an integer number (133450782).

Almost surely, 2^400352343 is an apocalyptic number.

400352343 is a deficient number, since it is larger than the sum of its proper divisors (133450785).

400352343 is a wasteful number, since it uses less digits than its factorization.

400352343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133450784.

The product of its (nonzero) digits is 4320, while the sum is 24.

The square root of 400352343 is about 20008.8066360790. The cubic root of 400352343 is about 737.0225766892.

The spelling of 400352343 in words is "four hundred million, three hundred fifty-two thousand, three hundred forty-three".