40236506 has 4 divisors (see below), whose sum is σ = 60354762. Its totient is φ = 20118252.

The previous prime is 40236461. The next prime is 40236527. The reversal of 40236506 is 60563204.

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., 21669025 + 18567481 = 4655^2 + 4309^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10059125 + ... + 10059128.

Almost surely, 2^40236506 is an apocalyptic number.

40236506 is a deficient number, since it is larger than the sum of its proper divisors (20118256).

40236506 is a wasteful number, since it uses less digits than its factorization.

40236506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20118255.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 40236506 is about 6343.2252048938. The cubic root of 40236506 is about 342.6678978610.

The spelling of 40236506 in words is "forty million, two hundred thirty-six thousand, five hundred six".