40493493 has 8 divisors (see below), whose sum is σ = 59990400. Its totient is φ = 26995644.

The previous prime is 40493489. The next prime is 40493513. The reversal of 40493493 is 39439404.

It is not a de Polignac number, because 40493493 - 2² = 40493489 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40493413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 749853 + ... + 749906.

It is an arithmetic number, because the mean of its divisors is an integer number (7498800).

Almost surely, 2^40493493 is an apocalyptic number.

It is an amenable number.

40493493 is a deficient number, since it is larger than the sum of its proper divisors (19496907).

40493493 is a wasteful number, since it uses less digits than its factorization.

40493493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1499768 (or 1499762 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 40493493 is about 6363.4497719397. The cubic root of 40493493 is about 343.3958800388.

The spelling of 40493493 in words is "forty million, four hundred ninety-three thousand, four hundred ninety-three".