99290142 has 72 divisors (see below), whose sum is σ = 254903376. Its totient is φ = 27361152.

The previous prime is 99290137. The next prime is 99290153. The reversal of 99290142 is 24109299.

It is a junction number, because it is equal to n+sod(n) for n = 99290097 and 99290106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 105498 + ... + 106434.

Almost surely, 2^99290142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99290142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127451688).

99290142 is an abundant number, since it is smaller than the sum of its proper divisors (155613234).

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

99290142 is a wasteful number, since it uses less digits than its factorization.

99290142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010 (or 978 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 99290142 is about 9964.4438881455. The cubic root of 99290142 is about 463.0579846428.

The spelling of 99290142 in words is "ninety-nine million, two hundred ninety thousand, one hundred forty-two".