40577242 has 4 divisors (see below), whose sum is σ = 60865866. Its totient is φ = 20288620.

The previous prime is 40577239. The next prime is 40577263. The reversal of 40577242 is 24277504.

40577242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 40462321 + 114921 = 6361^2 + 339^2 .

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10144309 + ... + 10144312.

Almost surely, 2^40577242 is an apocalyptic number.

40577242 is a deficient number, since it is larger than the sum of its proper divisors (20288624).

40577242 is a wasteful number, since it uses less digits than its factorization.

40577242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20288623.

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 40577242 is about 6370.0268445274. The cubic root of 40577242 is about 343.6324551491.

The spelling of 40577242 in words is "forty million, five hundred seventy-seven thousand, two hundred forty-two".