142403322 has 32 divisors (see below), whose sum is σ = 303962112. Its totient is φ = 44319744.

The previous prime is 142403299. The next prime is 142403329. The reversal of 142403322 is 223304241.

It is a super-2 number, since 2×142403322² = 40557412233271368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142403329) 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 15 ways as a sum of consecutive naturals, for example, 7458 + ... + 18450.

It is an arithmetic number, because the mean of its divisors is an integer number (9498816).

Almost surely, 2^142403322 is an apocalyptic number.

142403322 is an abundant number, since it is smaller than the sum of its proper divisors (161558790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142403322 is a wasteful number, since it uses less digits than its factorization.

142403322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11142.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 142403322 is about 11933.2863034455. The cubic root of 142403322 is about 522.2038149507.

Adding to 142403322 its reverse (223304241), we get a palindrome (365707563).

The spelling of 142403322 in words is "one hundred forty-two million, four hundred three thousand, three hundred twenty-two".