49040140 has 96 divisors (see below), whose sum is σ = 117411840. Its totient is φ = 17107200.

The previous prime is 49040077. The next prime is 49040177. The reversal of 49040140 is 4104094.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 270850 + ... + 271030.

It is an arithmetic number, because the mean of its divisors is an integer number (1223040).

Almost surely, 2^49040140 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 49040140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58705920).

49040140 is an abundant number, since it is smaller than the sum of its proper divisors (68371700).

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

49040140 is a wasteful number, since it uses less digits than its factorization.

49040140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263 (or 261 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 49040140 is about 7002.8665559184. The cubic root of 49040140 is about 366.0304651798.

The spelling of 49040140 in words is "forty-nine million, forty thousand, one hundred forty".