40501297 has 4 divisors (see below), whose sum is σ = 40522356. Its totient is φ = 40480240.

The previous prime is 40501291. The next prime is 40501301. The reversal of 40501297 is 79210504.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 36108081 + 4393216 = 6009^2 + 2096^2 .

It is a cyclic number.

It is not a de Polignac number, because 40501297 - 2³ = 40501289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40501291) 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, 7318 + ... + 11599.

It is an arithmetic number, because the mean of its divisors is an integer number (10130589).

Almost surely, 2^40501297 is an apocalyptic number.

It is an amenable number.

40501297 is a deficient number, since it is larger than the sum of its proper divisors (21059).

40501297 is a wasteful number, since it uses less digits than its factorization.

40501297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21058.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 40501297 is about 6364.0629318070. The cubic root of 40501297 is about 343.4179386389.

The spelling of 40501297 in words is "forty million, five hundred one thousand, two hundred ninety-seven".