142222940 has 48 divisors (see below), whose sum is σ = 309464064. Its totient is φ = 54868800.

The previous prime is 142222937. The next prime is 142222943. The reversal of 142222940 is 49222241.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (142222937) and next prime (142222943).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142222943) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 65675 + ... + 67805.

It is an arithmetic number, because the mean of its divisors is an integer number (6447168).

Almost surely, 2^142222940 is an apocalyptic number.

142222940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142222940 is an abundant number, since it is smaller than the sum of its proper divisors (167241124).

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

142222940 is a wasteful number, since it uses less digits than its factorization.

142222940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2258 (or 2256 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 142222940 is about 11925.7259737091. The cubic root of 142222940 is about 521.9832302809.

The spelling of 142222940 in words is "one hundred forty-two million, two hundred twenty-two thousand, nine hundred forty".