142364440 has 16 divisors (see below), whose sum is σ = 320320080. Its totient is φ = 56945760.

The previous prime is 142364389. The next prime is 142364447. The reversal of 142364440 is 44463241.

142364440 is nontrivially palindromic in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 142364399 and 142364408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142364447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1779516 + ... + 1779595.

It is an arithmetic number, because the mean of its divisors is an integer number (20020005).

Almost surely, 2^142364440 is an apocalyptic number.

142364440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142364440 is an abundant number, since it is smaller than the sum of its proper divisors (177955640).

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

142364440 is a wasteful number, since it uses less digits than its factorization.

142364440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3559122 (or 3559118 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 142364440 is about 11931.6570517259. The cubic root of 142364440 is about 522.1562828737.

The spelling of 142364440 in words is "one hundred forty-two million, three hundred sixty-four thousand, four hundred forty".