49372840 has 72 divisors (see below), whose sum is σ = 123326910. Its totient is φ = 17776000.

The previous prime is 49372831. The next prime is 49372847. The reversal of 49372840 is 4827394.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 48636676 + 736164 = 6974^2 + 858^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 49372840.

It is not an unprimeable number, because it can be changed into a prime (49372847) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 488790 + ... + 488890.

Almost surely, 2^49372840 is an apocalyptic number.

49372840 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 49372840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61663455).

49372840 is an abundant number, since it is smaller than the sum of its proper divisors (73954070).

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

49372840 is a wasteful number, since it uses less digits than its factorization.

49372840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 49372840 is about 7026.5809608941. The cubic root of 49372840 is about 366.8563463047.

It can be divided in two parts, 4937 and 2840, that added together give a palindrome (7777).

The spelling of 49372840 in words is "forty-nine million, three hundred seventy-two thousand, eight hundred forty".