40131794 has 16 divisors (see below), whose sum is σ = 63073536. Its totient is φ = 19126800.

The previous prime is 40131769. The next prime is 40131797. The reversal of 40131794 is 49713104.

It is a super-2 number, since 2×40131794² = 3221121779316872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40131797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 677 + ... + 8984.

It is an arithmetic number, because the mean of its divisors is an integer number (3942096).

Almost surely, 2^40131794 is an apocalyptic number.

40131794 is a deficient number, since it is larger than the sum of its proper divisors (22941742).

40131794 is a wasteful number, since it uses less digits than its factorization.

40131794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9761.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 40131794 is about 6334.9659825448. The cubic root of 40131794 is about 342.3703851817.

Adding to 40131794 its reverse (49713104), we get a palindrome (89844898).

The spelling of 40131794 in words is "forty million, one hundred thirty-one thousand, seven hundred ninety-four".