40573091 has 4 divisors (see below), whose sum is σ = 43694112. Its totient is φ = 37452072.

The previous prime is 40573069. The next prime is 40573109. The reversal of 40573091 is 19037504.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40573091 - 2¹⁴ = 40556707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40573051) 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, 1560491 + ... + 1560516.

It is an arithmetic number, because the mean of its divisors is an integer number (10923528).

Almost surely, 2^40573091 is an apocalyptic number.

40573091 is a deficient number, since it is larger than the sum of its proper divisors (3121021).

40573091 is a wasteful number, since it uses less digits than its factorization.

40573091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3121020.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 40573091 is about 6369.7010133914. The cubic root of 40573091 is about 343.6207370292.

The spelling of 40573091 in words is "forty million, five hundred seventy-three thousand, ninety-one".