40487858 has 8 divisors (see below), whose sum is σ = 61321728. Its totient is φ = 20047284.

The previous prime is 40487851. The next prime is 40487861. The reversal of 40487858 is 85878404.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40487851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98066 + ... + 98477.

It is an arithmetic number, because the mean of its divisors is an integer number (7665216).

Almost surely, 2^40487858 is an apocalyptic number.

40487858 is a deficient number, since it is larger than the sum of its proper divisors (20833870).

40487858 is a wasteful number, since it uses less digits than its factorization.

40487858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196648.

The product of its (nonzero) digits is 286720, while the sum is 44.

The square root of 40487858 is about 6363.0069935527. The cubic root of 40487858 is about 343.3799505202.

The spelling of 40487858 in words is "forty million, four hundred eighty-seven thousand, eight hundred fifty-eight".