40147431 has 8 divisors (see below), whose sum is σ = 54004080. Its totient is φ = 26527872.

The previous prime is 40147417. The next prime is 40147433. The reversal of 40147431 is 13474104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40147431 - 2⁹ = 40146919 is a prime.

It is a super-2 number, since 2×40147431² = 3223632431799522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40147433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58876 + ... + 59553.

It is an arithmetic number, because the mean of its divisors is an integer number (6750510).

Almost surely, 2^40147431 is an apocalyptic number.

40147431 is a deficient number, since it is larger than the sum of its proper divisors (13856649).

40147431 is a wasteful number, since it uses less digits than its factorization.

40147431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118545.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 40147431 is about 6336.2000441905. The cubic root of 40147431 is about 342.4148466091.

The spelling of 40147431 in words is "forty million, one hundred forty-seven thousand, four hundred thirty-one".