40197085 has 8 divisors (see below), whose sum is σ = 48897720. Its totient is φ = 31716864.

The previous prime is 40197029. The next prime is 40197107. The reversal of 40197085 is 58079104.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2913849 + 37283236 = 1707^2 + 6106^2 .

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 40197085 - 2⁹ = 40196573 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40197085.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54700 + ... + 55429.

It is an arithmetic number, because the mean of its divisors is an integer number (6112215).

Almost surely, 2^40197085 is an apocalyptic number.

It is an amenable number.

40197085 is a deficient number, since it is larger than the sum of its proper divisors (8700635).

40197085 is a wasteful number, since it uses less digits than its factorization.

40197085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110207.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 40197085 is about 6340.1171124830. The cubic root of 40197085 is about 342.5559537050. Note that the first 3 decimals are identical.

The spelling of 40197085 in words is "forty million, one hundred ninety-seven thousand, eighty-five".