40189293 has 12 divisors (see below), whose sum is σ = 58275360. Its totient is φ = 26689416.

The previous prime is 40189249. The next prime is 40189297. The reversal of 40189293 is 39298104.

It is not a de Polignac number, because 40189293 - 2⁶ = 40189229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40189297) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6123 + ... + 10856.

It is an arithmetic number, because the mean of its divisors is an integer number (4856280).

Almost surely, 2^40189293 is an apocalyptic number.

It is an amenable number.

40189293 is a deficient number, since it is larger than the sum of its proper divisors (18086067).

40189293 is a wasteful number, since it uses less digits than its factorization.

40189293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17248 (or 17245 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 40189293 is about 6339.5025830108. The cubic root of 40189293 is about 342.5338180329.

The spelling of 40189293 in words is "forty million, one hundred eighty-nine thousand, two hundred ninety-three".