40067447 has 12 divisors (see below), whose sum is σ = 49063320. Its totient is φ = 32535216.

The previous prime is 40067429. The next prime is 40067459. The reversal of 40067447 is 74476004.

It is not a de Polignac number, because 40067447 - 2⁶ = 40067383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40067477) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20588 + ... + 22449.

It is an arithmetic number, because the mean of its divisors is an integer number (4088610).

Almost surely, 2^40067447 is an apocalyptic number.

40067447 is a deficient number, since it is larger than the sum of its proper divisors (8995873).

40067447 is a wasteful number, since it uses less digits than its factorization.

40067447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43070 (or 43063 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 40067447 is about 6329.8852280274. The cubic root of 40067447 is about 342.1873026430.

The spelling of 40067447 in words is "forty million, sixty-seven thousand, four hundred forty-seven".