49940280 has 128 divisors (see below), whose sum is σ = 179323200. Its totient is φ = 12289536.

The previous prime is 49940279. The next prime is 49940299. The reversal of 49940280 is 8204994.

It is a happy number.

49940280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12262 + ... + 15818.

Almost surely, 2^49940280 is an apocalyptic number.

49940280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49940280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89661600).

49940280 is an abundant number, since it is smaller than the sum of its proper divisors (129382920).

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

49940280 is a wasteful number, since it uses less digits than its factorization.

49940280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3590 (or 3580 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 49940280 is about 7066.8437084741. The cubic root of 49940280 is about 368.2564178556.

The spelling of 49940280 in words is "forty-nine million, nine hundred forty thousand, two hundred eighty".