40352497 has 4 divisors (see below), whose sum is σ = 40458240. Its totient is φ = 40246756.

The previous prime is 40352491. The next prime is 40352503. The reversal of 40352497 is 79425304.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (40352491) and next prime (40352503).

It is a cyclic number.

It is not a de Polignac number, because 40352497 - 2¹⁹ = 39828209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40352491) 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, 52297 + ... + 53062.

It is an arithmetic number, because the mean of its divisors is an integer number (10114560).

Almost surely, 2^40352497 is an apocalyptic number.

It is an amenable number.

40352497 is a deficient number, since it is larger than the sum of its proper divisors (105743).

40352497 is a wasteful number, since it uses less digits than its factorization.

40352497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105742.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 40352497 is about 6352.3615293842. The cubic root of 40352497 is about 342.9968550231.

It can be divided in two parts, 403 and 52497, that added together give a square (52900 = 230²).

The spelling of 40352497 in words is "forty million, three hundred fifty-two thousand, four hundred ninety-seven".