142402230 has 24 divisors (see below), whose sum is σ = 370246032. Its totient is φ = 37973904.

The previous prime is 142402229. The next prime is 142402277. The reversal of 142402230 is 32204241.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 791034 + ... + 791213.

It is an arithmetic number, because the mean of its divisors is an integer number (15426918).

Almost surely, 2^142402230 is an apocalyptic number.

142402230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142402230 is an abundant number, since it is smaller than the sum of its proper divisors (227843802).

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

142402230 is a wasteful number, since it uses less digits than its factorization.

142402230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582260 (or 1582257 counting only the distinct ones).

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

The square root of 142402230 is about 11933.2405489875. The cubic root of 142402230 is about 522.2024801316.

Adding to 142402230 its reverse (32204241), we get a palindrome (174606471).

The spelling of 142402230 in words is "one hundred forty-two million, four hundred two thousand, two hundred thirty".