40254190 has 16 divisors (see below), whose sum is σ = 72530640. Its totient is φ = 16085440.

The previous prime is 40254173. The next prime is 40254191. The reversal of 40254190 is 9145204.

It is a super-2 number, since 2×40254190² = 3240799625112200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40254191) 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, 16041 + ... + 18379.

It is an arithmetic number, because the mean of its divisors is an integer number (4533165).

Almost surely, 2^40254190 is an apocalyptic number.

40254190 is a deficient number, since it is larger than the sum of its proper divisors (32276450).

40254190 is a wasteful number, since it uses less digits than its factorization.

40254190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4067.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 40254190 is about 6344.6189798915. The cubic root of 40254190 is about 342.7180915132.

Adding to 40254190 its reverse (9145204), we get a palindrome (49399394).

The spelling of 40254190 in words is "forty million, two hundred fifty-four thousand, one hundred ninety".