40209087 has 8 divisors (see below), whose sum is σ = 53645440. Its totient is φ = 26789400.

The previous prime is 40209067. The next prime is 40209107. The reversal of 40209087 is 78090204.

It is an interprime number because it is at equal distance from previous prime (40209067) and next prime (40209107).

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

It is not a de Polignac number, because 40209087 - 2⁶ = 40209023 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 (40209067) 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, 3462 + ... + 9612.

It is an arithmetic number, because the mean of its divisors is an integer number (6705680).

Almost surely, 2^40209087 is an apocalyptic number.

40209087 is a deficient number, since it is larger than the sum of its proper divisors (13436353).

40209087 is a wasteful number, since it uses less digits than its factorization.

40209087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8333.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 40209087 is about 6341.0635543259. The cubic root of 40209087 is about 342.5900436349.

The spelling of 40209087 in words is "forty million, two hundred nine thousand, eighty-seven".