40577739 has 4 divisors (see below), whose sum is σ = 54103656. Its totient is φ = 27051824.

The previous prime is 40577737. The next prime is 40577743. The reversal of 40577739 is 93777504.

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

It is a cyclic number.

It is not a de Polignac number, because 40577739 - 2¹ = 40577737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40577739.

It is not an unprimeable number, because it can be changed into a prime (40577731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6762954 + ... + 6762959.

It is an arithmetic number, because the mean of its divisors is an integer number (13525914).

Almost surely, 2^40577739 is an apocalyptic number.

40577739 is a deficient number, since it is larger than the sum of its proper divisors (13525917).

40577739 is a wasteful number, since it uses less digits than its factorization.

40577739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13525916.

The product of its (nonzero) digits is 185220, while the sum is 42.

The square root of 40577739 is about 6370.0658552326. The cubic root of 40577739 is about 343.6338581082.

The spelling of 40577739 in words is "forty million, five hundred seventy-seven thousand, seven hundred thirty-nine".