49780136 has 16 divisors (see below), whose sum is σ = 106671840. Its totient is φ = 21334320.

The previous prime is 49780121. The next prime is 49780151. The reversal of 49780136 is 63108794.

It is an interprime number because it is at equal distance from previous prime (49780121) and next prime (49780151).

It is a self number, because there is not a number n which added to its sum of digits gives 49780136.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 444410 + ... + 444521.

It is an arithmetic number, because the mean of its divisors is an integer number (6666990).

Almost surely, 2^49780136 is an apocalyptic number.

It is an amenable number.

49780136 is an abundant number, since it is smaller than the sum of its proper divisors (56891704).

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

49780136 is a wasteful number, since it uses less digits than its factorization.

49780136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888944 (or 888940 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 49780136 is about 7055.5039508174. The cubic root of 49780136 is about 367.8623658272.

The spelling of 49780136 in words is "forty-nine million, seven hundred eighty thousand, one hundred thirty-six".