40115494 has 8 divisors (see below), whose sum is σ = 60233040. Its totient is φ = 20037816.

The previous prime is 40115459. The next prime is 40115501. The reversal of 40115494 is 49451104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7309 + ... + 11560.

It is an arithmetic number, because the mean of its divisors is an integer number (7529130).

Almost surely, 2^40115494 is an apocalyptic number.

40115494 is a deficient number, since it is larger than the sum of its proper divisors (20117546).

40115494 is a wasteful number, since it uses less digits than its factorization.

40115494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19934.

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

The square root of 40115494 is about 6333.6793414255. The cubic root of 40115494 is about 342.3240263189.

Adding to 40115494 its reverse (49451104), we get a palindrome (89566598).

The spelling of 40115494 in words is "forty million, one hundred fifteen thousand, four hundred ninety-four".