40033257 has 8 divisors (see below), whose sum is σ = 58230240. Its totient is φ = 24262560.

The previous prime is 40033243. The next prime is 40033277. The reversal of 40033257 is 75233004.

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

It is not a de Polignac number, because 40033257 - 2¹⁵ = 40000489 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (40033277) 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, 606532 + ... + 606597.

It is an arithmetic number, because the mean of its divisors is an integer number (7278780).

Almost surely, 2^40033257 is an apocalyptic number.

It is an amenable number.

40033257 is a deficient number, since it is larger than the sum of its proper divisors (18196983).

40033257 is a wasteful number, since it uses less digits than its factorization.

40033257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213143.

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 40033257 is about 6327.1839707725. The cubic root of 40033257 is about 342.0899441964.

It can be divided in two parts, 4003 and 3257, that added together give a triangular number (7260 = T₁₂₀).

The spelling of 40033257 in words is "forty million, thirty-three thousand, two hundred fifty-seven".