49906644 has 12 divisors (see below), whose sum is σ = 116448864. Its totient is φ = 16635544.

The previous prime is 49906627. The next prime is 49906663. The reversal of 49906644 is 44660994.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 49906596 and 49906605.

It is a congruent number.

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, 2079432 + ... + 2079455.

It is an arithmetic number, because the mean of its divisors is an integer number (9704072).

Almost surely, 2^49906644 is an apocalyptic number.

It is an amenable number.

49906644 is an abundant number, since it is smaller than the sum of its proper divisors (66542220).

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

49906644 is a wasteful number, since it uses less digits than its factorization.

49906644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4158894 (or 4158892 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 49906644 is about 7064.4634615801. The cubic root of 49906644 is about 368.1737227190.

The spelling of 49906644 in words is "forty-nine million, nine hundred six thousand, six hundred forty-four".