40020754 has 32 divisors (see below), whose sum is σ = 67592880. Its totient is φ = 17676288.

The previous prime is 40020751. The next prime is 40020763. The reversal of 40020754 is 45702004.

It can be written as a sum of positive squares in 8 ways, for example, as 30503529 + 9517225 = 5523^2 + 3085^2 .

It is not an unprimeable number, because it can be changed into a prime (40020751) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 35934 + ... + 37030.

Almost surely, 2^40020754 is an apocalyptic number.

40020754 is a deficient number, since it is larger than the sum of its proper divisors (27572126).

40020754 is a wasteful number, since it uses less digits than its factorization.

40020754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 40020754 is about 6326.1958553304. The cubic root of 40020754 is about 342.0543271766.

Adding to 40020754 its reverse (45702004), we get a palindrome (85722758).

The spelling of 40020754 in words is "forty million, twenty thousand, seven hundred fifty-four".