40383591 has 16 divisors (see below), whose sum is σ = 54574080. Its totient is φ = 26560800.

The previous prime is 40383589. The next prime is 40383599. The reversal of 40383591 is 19538304.

It is not a de Polignac number, because 40383591 - 2¹ = 40383589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40383599) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108081 + ... + 108453.

It is an arithmetic number, because the mean of its divisors is an integer number (3410880).

Almost surely, 2^40383591 is an apocalyptic number.

40383591 is a deficient number, since it is larger than the sum of its proper divisors (14190489).

40383591 is a wasteful number, since it uses less digits than its factorization.

40383591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 40383591 is about 6354.8084943608. The cubic root of 40383591 is about 343.0849322326.

The spelling of 40383591 in words is "forty million, three hundred eighty-three thousand, five hundred ninety-one".