40454193 has 16 divisors (see below), whose sum is σ = 58222080. Its totient is φ = 24837504.

The previous prime is 40454189. The next prime is 40454201. The reversal of 40454193 is 39145404.

It is not a de Polignac number, because 40454193 - 2² = 40454189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40454193.

It is not an unprimeable number, because it can be changed into a prime (40454123) 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, 21280 + ... + 23102.

It is an arithmetic number, because the mean of its divisors is an integer number (3638880).

Almost surely, 2^40454193 is an apocalyptic number.

It is an amenable number.

40454193 is a deficient number, since it is larger than the sum of its proper divisors (17767887).

40454193 is a wasteful number, since it uses less digits than its factorization.

40454193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2408.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 40454193 is about 6360.3610746561. The cubic root of 40454193 is about 343.2847525025.

Adding to 40454193 its reverse (39145404), we get a palindrome (79599597).

The spelling of 40454193 in words is "forty million, four hundred fifty-four thousand, one hundred ninety-three".