40126247 has 12 divisors (see below), whose sum is σ = 47561256. Its totient is φ = 33742800.

The previous prime is 40126231. The next prime is 40126291. The reversal of 40126247 is 74262104.

It is not a de Polignac number, because 40126247 - 2⁴ = 40126231 is a prime.

It is a super-2 number, since 2×40126247² = 3220231396610018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40126447) 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, 5129 + ... + 10322.

It is an arithmetic number, because the mean of its divisors is an integer number (3963438).

Almost surely, 2^40126247 is an apocalyptic number.

40126247 is a deficient number, since it is larger than the sum of its proper divisors (7435009).

40126247 is a wasteful number, since it uses less digits than its factorization.

40126247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15518 (or 15511 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 40126247 is about 6334.5281592239. The cubic root of 40126247 is about 342.3546103572.

The spelling of 40126247 in words is "forty million, one hundred twenty-six thousand, two hundred forty-seven".