40066253 has 8 divisors (see below), whose sum is σ = 41885376. Its totient is φ = 38253600.

The previous prime is 40066241. The next prime is 40066259. The reversal of 40066253 is 35266004.

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

It is not a de Polignac number, because 40066253 - 2⁴ = 40066237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40066259) 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, 14633 + ... + 17153.

It is an arithmetic number, because the mean of its divisors is an integer number (5235672).

Almost surely, 2^40066253 is an apocalyptic number.

It is an amenable number.

40066253 is a deficient number, since it is larger than the sum of its proper divisors (1819123).

40066253 is a wasteful number, since it uses less digits than its factorization.

40066253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3235.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 40066253 is about 6329.7909128185. The cubic root of 40066253 is about 342.1839035769.

The spelling of 40066253 in words is "forty million, sixty-six thousand, two hundred fifty-three".