40224447 has 24 divisors (see below), whose sum is σ = 60918624. Its totient is φ = 25527744.

The previous prime is 40224427. The next prime is 40224449. The reversal of 40224447 is 74442204.

It is not a de Polignac number, because 40224447 - 2⁶ = 40224383 is a prime.

It is a super-2 number, since 2×40224447² = 3236012272911618, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40224447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40224449) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65313 + ... + 65925.

It is an arithmetic number, because the mean of its divisors is an integer number (2538276).

Almost surely, 2^40224447 is an apocalyptic number.

40224447 is a deficient number, since it is larger than the sum of its proper divisors (20694177).

40224447 is a wasteful number, since it uses less digits than its factorization.

40224447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959 (or 956 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 27.

The square root of 40224447 is about 6342.2745919741. The cubic root of 40224447 is about 342.6336615793.

The spelling of 40224447 in words is "forty million, two hundred twenty-four thousand, four hundred forty-seven".