142403404 has 48 divisors (see below), whose sum is σ = 308206080. Its totient is φ = 56600640.

The previous prime is 142403389. The next prime is 142403413. The reversal of 142403404 is 404304241.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4317 + ... + 17419.

It is an arithmetic number, because the mean of its divisors is an integer number (6420960).

Almost surely, 2^142403404 is an apocalyptic number.

It is an amenable number.

142403404 is an abundant number, since it is smaller than the sum of its proper divisors (165802676).

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

142403404 is a wasteful number, since it uses less digits than its factorization.

142403404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13150 (or 13148 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 142403404 is about 11933.2897392127. The cubic root of 142403404 is about 522.2039151841.

Adding to 142403404 its reverse (404304241), we get a palindrome (546707645).

The spelling of 142403404 in words is "one hundred forty-two million, four hundred three thousand, four hundred four".