142300404 has 72 divisors (see below), whose sum is σ = 383547528. Its totient is φ = 44328960.

The previous prime is 142300397. The next prime is 142300423. The reversal of 142300404 is 404003241.

It can be written as a sum of positive squares in 4 ways, for example, as 21344400 + 120956004 = 4620^2 + 10998^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95344 + ... + 96824.

It is an arithmetic number, because the mean of its divisors is an integer number (5327049).

Almost surely, 2^142300404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142300404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191773764).

142300404 is an abundant number, since it is smaller than the sum of its proper divisors (241247124).

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

142300404 is a wasteful number, since it uses less digits than its factorization.

142300404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665 (or 1660 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 142300404 is about 11928.9733003306. The cubic root of 142300404 is about 522.0779819199.

Adding to 142300404 its reverse (404003241), we get a palindrome (546303645).

The spelling of 142300404 in words is "one hundred forty-two million, three hundred thousand, four hundred four".