40224639 has 64 divisors (see below), whose sum is σ = 70246400. Its totient is φ = 20321280.

The previous prime is 40224619. The next prime is 40224641. The reversal of 40224639 is 93642204.

It is not a de Polignac number, because 40224639 - 2⁷ = 40224511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40224619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 414639 + ... + 414735.

It is an arithmetic number, because the mean of its divisors is an integer number (1097600).

Almost surely, 2^40224639 is an apocalyptic number.

40224639 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

40224639 is a deficient number, since it is larger than the sum of its proper divisors (30021761).

40224639 is a wasteful number, since it uses less digits than its factorization.

40224639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 40224639 is about 6342.2897284813. The cubic root of 40224639 is about 342.6342067333.

The spelling of 40224639 in words is "forty million, two hundred twenty-four thousand, six hundred thirty-nine".