40407087 has 8 divisors (see below), whose sum is σ = 61572736. Its totient is φ = 23089752.

The previous prime is 40407083. The next prime is 40407089. The reversal of 40407087 is 78070404.

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

It is not a de Polignac number, because 40407087 - 2² = 40407083 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 (40407083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 962053 + ... + 962094.

It is an arithmetic number, because the mean of its divisors is an integer number (7696592).

Almost surely, 2^40407087 is an apocalyptic number.

40407087 is a deficient number, since it is larger than the sum of its proper divisors (21165649).

40407087 is a wasteful number, since it uses less digits than its factorization.

40407087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1924157.

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 40407087 is about 6356.6569043798. The cubic root of 40407087 is about 343.1514572782.

The spelling of 40407087 in words is "forty million, four hundred seven thousand, eighty-seven".