40222539 has 12 divisors (see below), whose sum is σ = 66399216. Its totient is φ = 22984272.

The previous prime is 40222537. The next prime is 40222541. The reversal of 40222539 is 93522204.

40222539 is a `hidden beast` number, since 402 + 2 + 253 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (40222537) and next prime (40222541).

It is not a de Polignac number, because 40222539 - 2¹ = 40222537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40222537) 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, 319164 + ... + 319289.

It is an arithmetic number, because the mean of its divisors is an integer number (5533268).

Almost surely, 2^40222539 is an apocalyptic number.

40222539 is a deficient number, since it is larger than the sum of its proper divisors (26176677).

40222539 is a wasteful number, since it uses less digits than its factorization.

40222539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638466 (or 638463 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 40222539 is about 6342.1241709698. The cubic root of 40222539 is about 342.6282440168.

It can be divided in two parts, 4022 and 2539, that added together give a 8-th power (6561 = 3⁸).

The spelling of 40222539 in words is "forty million, two hundred twenty-two thousand, five hundred thirty-nine".