49990122 has 80 divisors (see below), whose sum is σ = 137905152. Its totient is φ = 13180320.

The previous prime is 49990117. The next prime is 49990139. The reversal of 49990122 is 22109994.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13047 + ... + 16437.

Almost surely, 2^49990122 is an apocalyptic number.

49990122 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 49990122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68952576).

49990122 is an abundant number, since it is smaller than the sum of its proper divisors (87915030).

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

49990122 is a wasteful number, since it uses less digits than its factorization.

49990122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3425 (or 3416 counting only the distinct ones).

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

The square root of 49990122 is about 7070.3692972857. The cubic root of 49990122 is about 368.3788876908.

The spelling of 49990122 in words is "forty-nine million, nine hundred ninety thousand, one hundred twenty-two".