49628440 has 64 divisors (see below), whose sum is σ = 120333600. Its totient is φ = 18352128.

The previous prime is 49628431. The next prime is 49628443. The reversal of 49628440 is 4482694.

It is a self number, because there is not a number n which added to its sum of digits gives 49628440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49628443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39502 + ... + 40738.

Almost surely, 2^49628440 is an apocalyptic number.

49628440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49628440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60166800).

49628440 is an abundant number, since it is smaller than the sum of its proper divisors (70705160).

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

49628440 is a wasteful number, since it uses less digits than its factorization.

49628440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324 (or 1320 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 49628440 is about 7044.7455596352. The cubic root of 49628440 is about 367.4883208530.

The spelling of 49628440 in words is "forty-nine million, six hundred twenty-eight thousand, four hundred forty".