40197577 has 8 divisors (see below), whose sum is σ = 47182016. Its totient is φ = 33523632.

The previous prime is 40197569. The next prime is 40197587. The reversal of 40197577 is 77579104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40197577 - 2³ = 40197569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40197527) 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, 77343 + ... + 77860.

It is an arithmetic number, because the mean of its divisors is an integer number (5897752).

Almost surely, 2^40197577 is an apocalyptic number.

It is an amenable number.

40197577 is a deficient number, since it is larger than the sum of its proper divisors (6984439).

40197577 is a wasteful number, since it uses less digits than its factorization.

40197577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155247.

The product of its (nonzero) digits is 61740, while the sum is 40.

The square root of 40197577 is about 6340.1559129094. The cubic root of 40197577 is about 342.5573512926.

The spelling of 40197577 in words is "forty million, one hundred ninety-seven thousand, five hundred seventy-seven".