40286491 has 8 divisors (see below), whose sum is σ = 46081760. Its totient is φ = 34501248.

The previous prime is 40286489. The next prime is 40286513. The reversal of 40286491 is 19468204.

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 40286491 - 2¹ = 40286489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40286401) 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, 10915 + ... + 14131.

It is an arithmetic number, because the mean of its divisors is an integer number (5760220).

Almost surely, 2^40286491 is an apocalyptic number.

40286491 is a deficient number, since it is larger than the sum of its proper divisors (5795269).

40286491 is a wasteful number, since it uses less digits than its factorization.

40286491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5013.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 40286491 is about 6347.1640123759. The cubic root of 40286491 is about 342.8097356162.

The spelling of 40286491 in words is "forty million, two hundred eighty-six thousand, four hundred ninety-one".