40107397 has 8 divisors (see below), whose sum is σ = 45165312. Its totient is φ = 35284800.

The previous prime is 40107359. The next prime is 40107413. The reversal of 40107397 is 79370104.

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 40107397 - 2¹¹ = 40105349 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40107337) 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, 58468 + ... + 59149.

It is an arithmetic number, because the mean of its divisors is an integer number (5645664).

Almost surely, 2^40107397 is an apocalyptic number.

It is an amenable number.

40107397 is a deficient number, since it is larger than the sum of its proper divisors (5057915).

40107397 is a wasteful number, since it uses less digits than its factorization.

40107397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117659.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 40107397 is about 6333.0401072471. The cubic root of 40107397 is about 342.3009929564.

It can be divided in two parts, 40107 and 397, that added together give a palindrome (40504).

The spelling of 40107397 in words is "forty million, one hundred seven thousand, three hundred ninety-seven".