40127870 has 16 divisors (see below), whose sum is σ = 75371040. Its totient is φ = 15353184.

The previous prime is 40127849. The next prime is 40127887. The reversal of 40127870 is 7872104.

It is a super-2 number, since 2×40127870² = 3220491901473800, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87005 + ... + 87464.

It is an arithmetic number, because the mean of its divisors is an integer number (4710690).

Almost surely, 2^40127870 is an apocalyptic number.

40127870 is a deficient number, since it is larger than the sum of its proper divisors (35243170).

40127870 is a wasteful number, since it uses less digits than its factorization.

40127870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174499.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 40127870 is about 6334.6562653391. The cubic root of 40127870 is about 342.3592260728.

Adding to 40127870 its reverse (7872104), we get a palindrome (47999974).

The spelling of 40127870 in words is "forty million, one hundred twenty-seven thousand, eight hundred seventy".