40048993 has 8 divisors (see below), whose sum is σ = 41431040. Its totient is φ = 38672640.

The previous prime is 40048969. The next prime is 40048997. The reversal of 40048993 is 39984004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40048993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40048997) 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, 16768 + ... + 19006.

It is an arithmetic number, because the mean of its divisors is an integer number (5178880).

Almost surely, 2^40048993 is an apocalyptic number.

It is an amenable number.

40048993 is a deficient number, since it is larger than the sum of its proper divisors (1382047).

40048993 is a wasteful number, since it uses less digits than its factorization.

40048993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2847.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 40048993 is about 6328.4273717883. The cubic root of 40048993 is about 342.1347604534.

It can be divided in two parts, 40048 and 993, that added together give a triangular number (41041 = T₂₈₆).

The spelling of 40048993 in words is "forty million, forty-eight thousand, nine hundred ninety-three".