142990896 has 20 divisors (see below), whose sum is σ = 369393272. Its totient is φ = 47663616.

The previous prime is 142990877. The next prime is 142990919. The reversal of 142990896 is 698099241.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 2978977 = 142990896 / (1 + 4 + 2 + 9 + 9 + 0 + 8 + 9 + 6).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1489441 + ... + 1489536.

Almost surely, 2^142990896 is an apocalyptic number.

142990896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

142990896 is an abundant number, since it is smaller than the sum of its proper divisors (226402376).

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

142990896 is a wasteful number, since it uses less digits than its factorization.

142990896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2978988 (or 2978982 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 48.

The square root of 142990896 is about 11957.8800796797. The cubic root of 142990896 is about 522.9210555640.

The spelling of 142990896 in words is "one hundred forty-two million, nine hundred ninety thousand, eight hundred ninety-six".