49093640 has 32 divisors (see below), whose sum is σ = 111608280. Its totient is φ = 19433472.

The previous prime is 49093619. The next prime is 49093643. The reversal of 49093640 is 4639094.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 21362884 + 27730756 = 4622^2 + 5266^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 49093640.

It is not an unprimeable number, because it can be changed into a prime (49093643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2447 + ... + 10206.

Almost surely, 2^49093640 is an apocalyptic number.

49093640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49093640 is an abundant number, since it is smaller than the sum of its proper divisors (62514640).

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

49093640 is a wasteful number, since it uses less digits than its factorization.

49093640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12761 (or 12757 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 49093640 is about 7006.6853789791. The cubic root of 49093640 is about 366.1635229363.

The spelling of 49093640 in words is "forty-nine million, ninety-three thousand, six hundred forty".