40470047 has 16 divisors (see below), whose sum is σ = 44025120. Its totient is φ = 37060608.

The previous prime is 40470043. The next prime is 40470061. The reversal of 40470047 is 74007404.

40470047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 40470047 - 2² = 40470043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40469998 and 40470025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40470043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157343 + ... + 157599.

It is an arithmetic number, because the mean of its divisors is an integer number (2751570).

Almost surely, 2^40470047 is an apocalyptic number.

40470047 is a deficient number, since it is larger than the sum of its proper divisors (3555073).

40470047 is a wasteful number, since it uses less digits than its factorization.

40470047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490.

The product of its (nonzero) digits is 3136, while the sum is 26.

The square root of 40470047 is about 6361.6072654637. The cubic root of 40470047 is about 343.3295910821.

The spelling of 40470047 in words is "forty million, four hundred seventy thousand, forty-seven".