49998620 has 72 divisors (see below), whose sum is σ = 123281424. Its totient is φ = 16982784.

The previous prime is 49998617. The next prime is 49998623. The reversal of 49998620 is 2689994.

It is an interprime number because it is at equal distance from previous prime (49998617) and next prime (49998623).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49998623) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 159584 + ... + 159896.

It is an arithmetic number, because the mean of its divisors is an integer number (1712242).

Almost surely, 2^49998620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49998620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61640712).

49998620 is an abundant number, since it is smaller than the sum of its proper divisors (73282804).

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

49998620 is a wasteful number, since it uses less digits than its factorization.

49998620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499 (or 490 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 49998620 is about 7070.9702304564. The cubic root of 49998620 is about 368.3997605239.

The spelling of 49998620 in words is "forty-nine million, nine hundred ninety-eight thousand, six hundred twenty".