40724254 has 16 divisors (see below), whose sum is σ = 61767936. Its totient is φ = 20136600.

The previous prime is 40724227. The next prime is 40724261. The reversal of 40724254 is 45242704.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122869 + ... + 123199.

It is an arithmetic number, because the mean of its divisors is an integer number (3860496).

Almost surely, 2^40724254 is an apocalyptic number.

40724254 is a deficient number, since it is larger than the sum of its proper divisors (21043682).

40724254 is a wasteful number, since it uses less digits than its factorization.

40724254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831.

The product of its (nonzero) digits is 8960, while the sum is 28.

The square root of 40724254 is about 6381.5557664256. Note that the first 3 decimals coincide. The cubic root of 40724254 is about 344.0469502801.

Adding to 40724254 its reverse (45242704), we get a palindrome (85966958).

The spelling of 40724254 in words is "forty million, seven hundred twenty-four thousand, two hundred fifty-four".