40281297 has 8 divisors (see below), whose sum is σ = 61381056. Its totient is φ = 23017872.

The previous prime is 40281281. The next prime is 40281301. The reversal of 40281297 is 79218204.

It is a happy number.

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

It is not a de Polignac number, because 40281297 - 2⁴ = 40281281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40281697) 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, 959058 + ... + 959099.

It is an arithmetic number, because the mean of its divisors is an integer number (7672632).

Almost surely, 2^40281297 is an apocalyptic number.

It is an amenable number.

40281297 is a deficient number, since it is larger than the sum of its proper divisors (21099759).

40281297 is a wasteful number, since it uses less digits than its factorization.

40281297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918167.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 40281297 is about 6346.7548400738. The cubic root of 40281297 is about 342.7950025527.

The spelling of 40281297 in words is "forty million, two hundred eighty-one thousand, two hundred ninety-seven".