49644420 has 144 divisors (see below), whose sum is σ = 169169280. Its totient is φ = 10653696.

The previous prime is 49644409. The next prime is 49644431. The reversal of 49644420 is 2444694.

It is an interprime number because it is at equal distance from previous prime (49644409) and next prime (49644431).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 121176 + ... + 121584.

Almost surely, 2^49644420 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 49644420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84584640).

49644420 is an abundant number, since it is smaller than the sum of its proper divisors (119524860).

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

49644420 is a wasteful number, since it uses less digits than its factorization.

49644420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462 (or 443 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 49644420 is about 7045.8796469994. The cubic root of 49644420 is about 367.5277594839.

The spelling of 49644420 in words is "forty-nine million, six hundred forty-four thousand, four hundred twenty".