49997442 has 48 divisors (see below), whose sum is σ = 116405856. Its totient is φ = 14256000.

The previous prime is 49997411. The next prime is 49997447. The reversal of 49997442 is 24479994.

It is a junction number, because it is equal to n+sod(n) for n = 49997391 and 49997400.

It is not an unprimeable number, because it can be changed into a prime (49997447) 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, 10317 + ... + 14367.

It is an arithmetic number, because the mean of its divisors is an integer number (2425122).

Almost surely, 2^49997442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49997442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58202928).

49997442 is an abundant number, since it is smaller than the sum of its proper divisors (66408414).

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

49997442 is a wasteful number, since it uses less digits than its factorization.

49997442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4095 (or 4084 counting only the distinct ones).

The product of its digits is 653184, while the sum is 48.

The square root of 49997442 is about 7070.8869316374. The cubic root of 49997442 is about 368.3968672552.

The spelling of 49997442 in words is "forty-nine million, nine hundred ninety-seven thousand, four hundred forty-two".