40065754 has 4 divisors (see below), whose sum is σ = 60098634. Its totient is φ = 20032876.

The previous prime is 40065713. The next prime is 40065763. The reversal of 40065754 is 45756004.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 35676729 + 4389025 = 5973^2 + 2095^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10016437 + ... + 10016440.

Almost surely, 2^40065754 is an apocalyptic number.

40065754 is a deficient number, since it is larger than the sum of its proper divisors (20032880).

40065754 is a wasteful number, since it uses less digits than its factorization.

40065754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20032879.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 40065754 is about 6329.7514959120. The cubic root of 40065754 is about 342.1824830092.

The spelling of 40065754 in words is "forty million, sixty-five thousand, seven hundred fifty-four".