49997240 has 32 divisors (see below), whose sum is σ = 112877280. Its totient is φ = 19930752.

The previous prime is 49997201. The next prime is 49997251. The reversal of 49997240 is 4279994.

It is a junction number, because it is equal to n+sod(n) for n = 49997191 and 49997200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10709 + ... + 14651.

It is an arithmetic number, because the mean of its divisors is an integer number (3527415).

Almost surely, 2^49997240 is an apocalyptic number.

49997240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49997240 is an abundant number, since it is smaller than the sum of its proper divisors (62880040).

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

49997240 is a wasteful number, since it uses less digits than its factorization.

49997240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4271 (or 4267 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 49997240 is about 7070.8726477006. The cubic root of 49997240 is about 368.3963711214.

The spelling of 49997240 in words is "forty-nine million, nine hundred ninety-seven thousand, two hundred forty".