49899894 has 64 divisors (see below), whose sum is σ = 116398080. Its totient is φ = 14128800.

The previous prime is 49899893. The next prime is 49899901.

49899894 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×49899894² = 4979998842422472, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49899893) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1609659 + ... + 1609689.

It is an arithmetic number, because the mean of its divisors is an integer number (1818720).

Almost surely, 2^49899894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49899894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58199040).

49899894 is an abundant number, since it is smaller than the sum of its proper divisors (66498186).

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

49899894 is a wasteful number, since it uses less digits than its factorization.

49899894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 76 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 60.

The square root of 49899894 is about 7063.9857021373. The cubic root of 49899894 is about 368.1571231611.

The spelling of 49899894 in words is "forty-nine million, eight hundred ninety-nine thousand, eight hundred ninety-four".