142936220 has 24 divisors (see below), whose sum is σ = 343047264. Its totient is φ = 49006656.

The previous prime is 142936219. The next prime is 142936223. The reversal of 142936220 is 22639241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142936223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 510347 + ... + 510626.

It is an arithmetic number, because the mean of its divisors is an integer number (14293636).

Almost surely, 2^142936220 is an apocalyptic number.

142936220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142936220 is an abundant number, since it is smaller than the sum of its proper divisors (200111044).

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

142936220 is a wasteful number, since it uses less digits than its factorization.

142936220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020989 (or 1020987 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 142936220 is about 11955.5936699103. The cubic root of 142936220 is about 522.8543965963.

The spelling of 142936220 in words is "one hundred forty-two million, nine hundred thirty-six thousand, two hundred twenty".