40577140 has 24 divisors (see below), whose sum is σ = 87962112. Its totient is φ = 15707040.

The previous prime is 40577107. The next prime is 40577149. The reversal of 40577140 is 4177504.

It is a junction number, because it is equal to n+sod(n) for n = 40577099 and 40577108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40577149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32104 + ... + 33343.

It is an arithmetic number, because the mean of its divisors is an integer number (3665088).

Almost surely, 2^40577140 is an apocalyptic number.

It is an amenable number.

40577140 is an abundant number, since it is smaller than the sum of its proper divisors (47384972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40577140 is a wasteful number, since it uses less digits than its factorization.

40577140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65487 (or 65485 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 40577140 is about 6370.0188382767. The cubic root of 40577140 is about 343.6321672165.

The spelling of 40577140 in words is "forty million, five hundred seventy-seven thousand, one hundred forty".