49109580 has 144 divisors (see below), whose sum is σ = 165844224. Its totient is φ = 11681280.

The previous prime is 49109563. The next prime is 49109581. The reversal of 49109580 is 8590194.

49109580 is a `hidden beast` number, since 491 + 0 + 95 + 80 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49109581) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 72202 + ... + 72878.

It is an arithmetic number, because the mean of its divisors is an integer number (1151696).

Almost surely, 2^49109580 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 49109580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82922112).

49109580 is an abundant number, since it is smaller than the sum of its proper divisors (116734644).

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

49109580 is a wasteful number, since it uses less digits than its factorization.

49109580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736 (or 731 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 49109580 is about 7007.8227717316. The cubic root of 49109580 is about 366.2031479942.

The spelling of 49109580 in words is "forty-nine million, one hundred nine thousand, five hundred eighty".