142223004 has 72 divisors (see below), whose sum is σ = 448226688. Its totient is φ = 36940320.

The previous prime is 142222957. The next prime is 142223021. The reversal of 142223004 is 400322241.

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

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22882 + ... + 28425.

Almost surely, 2^142223004 is an apocalyptic number.

142223004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

142223004 is an abundant number, since it is smaller than the sum of its proper divisors (306003684).

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

142223004 is a wasteful number, since it uses less digits than its factorization.

142223004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51335 (or 51330 counting only the distinct ones).

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

The square root of 142223004 is about 11925.7286569836. The cubic root of 142223004 is about 521.9833085780.

Adding to 142223004 its reverse (400322241), we get a palindrome (542545245).

The spelling of 142223004 in words is "one hundred forty-two million, two hundred twenty-three thousand, four".