49804890 has 128 divisors (see below), whose sum is σ = 136857600. Its totient is φ = 11531520.

The previous prime is 49804847. The next prime is 49804891. The reversal of 49804890 is 9840894.

It is not an unprimeable number, because it can be changed into a prime (49804891) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 380125 + ... + 380255.

It is an arithmetic number, because the mean of its divisors is an integer number (1069200).

Almost surely, 2^49804890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49804890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68428800).

49804890 is an abundant number, since it is smaller than the sum of its proper divisors (87052710).

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

49804890 is a wasteful number, since it uses less digits than its factorization.

49804890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 49804890 is about 7057.2579660942. The cubic root of 49804890 is about 367.9233309482.

It can be divided in two parts, 4980 and 4890, that added together give a triangular number (9870 = T₁₄₀).

The spelling of 49804890 in words is "forty-nine million, eight hundred four thousand, eight hundred ninety".