142499628 has 48 divisors (see below), whose sum is σ = 385512960. Its totient is φ = 45433872.

The previous prime is 142499611. The next prime is 142499633. The reversal of 142499628 is 826994241.

142499628 is a `hidden beast` number, since 14 + 2 + 4 + 9 + 9 + 628 = 666.

It is a super-2 number, since 2×142499628² = 40612287960276768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26200 + ... + 31167.

It is an arithmetic number, because the mean of its divisors is an integer number (8031520).

Almost surely, 2^142499628 is an apocalyptic number.

142499628 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

142499628 is an abundant number, since it is smaller than the sum of its proper divisors (243013332).

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

142499628 is a wasteful number, since it uses less digits than its factorization.

142499628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57403 (or 57395 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 142499628 is about 11937.3208049378. The cubic root of 142499628 is about 522.3215088990.

The spelling of 142499628 in words is "one hundred forty-two million, four hundred ninety-nine thousand, six hundred twenty-eight".