402303142 has 8 divisors (see below), whose sum is σ = 603657432. Its totient is φ = 201084000.

The previous prime is 402303137. The next prime is 402303149. The reversal of 402303142 is 241303204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402303149) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 25984 + ... + 38467.

It is an arithmetic number, because the mean of its divisors is an integer number (75457179).

Almost surely, 2^402303142 is an apocalyptic number.

402303142 is a deficient number, since it is larger than the sum of its proper divisors (201354290).

402303142 is a wasteful number, since it uses less digits than its factorization.

402303142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67574.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 402303142 is about 20057.4959055212. The cubic root of 402303142 is about 738.2177355157.

Adding to 402303142 its reverse (241303204), we get a palindrome (643606346).

The spelling of 402303142 in words is "four hundred two million, three hundred three thousand, one hundred forty-two".