40415194 has 4 divisors (see below), whose sum is σ = 60622794. Its totient is φ = 20207596.

The previous prime is 40415191. The next prime is 40415197. The reversal of 40415194 is 49151404.

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

It is an interprime number because it is at equal distance from previous prime (40415191) and next prime (40415197).

It can be written as a sum of positive squares in only one way, i.e., 27720225 + 12694969 = 5265^2 + 3563^2 .

It is not an unprimeable number, because it can be changed into a prime (40415191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10103797 + ... + 10103800.

Almost surely, 2^40415194 is an apocalyptic number.

40415194 is a deficient number, since it is larger than the sum of its proper divisors (20207600).

40415194 is a wasteful number, since it uses less digits than its factorization.

40415194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20207599.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 40415194 is about 6357.2945503571. The cubic root of 40415194 is about 343.1744049263.

Adding to 40415194 its reverse (49151404), we get a palindrome (89566598).

The spelling of 40415194 in words is "forty million, four hundred fifteen thousand, one hundred ninety-four".