40448893 has 4 divisors (see below), whose sum is σ = 41753728. Its totient is φ = 39144060.

The previous prime is 40448887. The next prime is 40448897. The reversal of 40448893 is 39884404.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40448893 - 2¹⁷ = 40317821 is a prime.

It is a super-2 number, since 2×40448893² = 3272225889850898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40448897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 652371 + ... + 652432.

It is an arithmetic number, because the mean of its divisors is an integer number (10438432).

Almost surely, 2^40448893 is an apocalyptic number.

It is an amenable number.

40448893 is a deficient number, since it is larger than the sum of its proper divisors (1304835).

40448893 is a wasteful number, since it uses less digits than its factorization.

40448893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304834.

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 40448893 is about 6359.9444179961. The cubic root of 40448893 is about 343.2697603305.

The spelling of 40448893 in words is "forty million, four hundred forty-eight thousand, eight hundred ninety-three".