40226139 has 20 divisors (see below), whose sum is σ = 60923016. Its totient is φ = 26446176.

The previous prime is 40226119. The next prime is 40226159. The reversal of 40226139 is 93162204.

40226139 is a `hidden beast` number, since 40 + 2 + 2 + 613 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (40226119) and next prime (40226159).

It is not a de Polignac number, because 40226139 - 2¹⁵ = 40193371 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (40226119) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2512 + ... + 9314.

Almost surely, 2^40226139 is an apocalyptic number.

40226139 is a deficient number, since it is larger than the sum of its proper divisors (20696877).

40226139 is an equidigital number, since it uses as much as digits as its factorization.

40226139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6888 (or 6879 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 40226139 is about 6342.4079812008. The cubic root of 40226139 is about 342.6384656894.

The spelling of 40226139 in words is "forty million, two hundred twenty-six thousand, one hundred thirty-nine".