40577069 has 6 divisors (see below), whose sum is σ = 43938666. Its totient is φ = 37455600.

The previous prime is 40577051. The next prime is 40577077. The reversal of 40577069 is 96077504.

It can be written as a sum of positive squares in 3 ways, for example, as 5943844 + 34633225 = 2438^2 + 5885^2 .

It is not a de Polignac number, because 40577069 - 2⁸ = 40576813 is a prime.

It is a super-2 number, since 2×40577069² = 3292997057261522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40577029) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 119882 + ... + 120219.

It is an arithmetic number, because the mean of its divisors is an integer number (7323111).

Almost surely, 2^40577069 is an apocalyptic number.

It is an amenable number.

40577069 is a deficient number, since it is larger than the sum of its proper divisors (3361597).

40577069 is a wasteful number, since it uses less digits than its factorization.

40577069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240127 (or 240114 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 40577069 is about 6370.0132652923. The cubic root of 40577069 is about 343.6319667925.

The spelling of 40577069 in words is "forty million, five hundred seventy-seven thousand, sixty-nine".