40533247 has 4 divisors (see below), whose sum is σ = 40607896. Its totient is φ = 40458600.

The previous prime is 40533217. The next prime is 40533263. The reversal of 40533247 is 74233504.

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

It is a cyclic number.

It is not a de Polignac number, because 40533247 - 2¹⁵ = 40500479 is a prime.

It is a super-2 number, since 2×40533247² = 3285888224726018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40533217) 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, 36504 + ... + 37597.

It is an arithmetic number, because the mean of its divisors is an integer number (10151974).

Almost surely, 2^40533247 is an apocalyptic number.

40533247 is a deficient number, since it is larger than the sum of its proper divisors (74649).

40533247 is an equidigital number, since it uses as much as digits as its factorization.

40533247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74648.

The product of its (nonzero) digits is 10080, while the sum is 28.

The square root of 40533247 is about 6366.5726258325. The cubic root of 40533247 is about 343.5082182104.

The spelling of 40533247 in words is "forty million, five hundred thirty-three thousand, two hundred forty-seven".