402323043 has 16 divisors (see below), whose sum is σ = 566265600. Its totient is φ = 253378080.

The previous prime is 402323039. The next prime is 402323083. The reversal of 402323043 is 340323204.

It is not a de Polignac number, because 402323043 - 2² = 402323039 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402323083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10633 + ... + 30293.

It is an arithmetic number, because the mean of its divisors is an integer number (35391600).

Almost surely, 2^402323043 is an apocalyptic number.

402323043 is a deficient number, since it is larger than the sum of its proper divisors (163942557).

402323043 is a wasteful number, since it uses less digits than its factorization.

402323043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20042.

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 402323043 is about 20057.9919982036. The cubic root of 402323043 is about 738.2299079527.

Adding to 402323043 its reverse (340323204), we get a palindrome (742646247).

The spelling of 402323043 in words is "four hundred two million, three hundred twenty-three thousand, forty-three".