40127401 has 4 divisors (see below), whose sum is σ = 40524804. Its totient is φ = 39730000.

The previous prime is 40127389. The next prime is 40127407. The reversal of 40127401 is 10472104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33872400 + 6255001 = 5820^2 + 2501^2 .

It is a cyclic number.

It is not a de Polignac number, because 40127401 - 2¹⁷ = 39996329 is a prime.

It is a super-2 number, since 2×40127401² = 3220416622029602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40127407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198550 + ... + 198751.

It is an arithmetic number, because the mean of its divisors is an integer number (10131201).

Almost surely, 2^40127401 is an apocalyptic number.

It is an amenable number.

40127401 is a deficient number, since it is larger than the sum of its proper divisors (397403).

40127401 is a wasteful number, since it uses less digits than its factorization.

40127401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397402.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 40127401 is about 6334.6192466477. The cubic root of 40127401 is about 342.3578922774.

Adding to 40127401 its reverse (10472104), we get a palindrome (50599505).

The spelling of 40127401 in words is "forty million, one hundred twenty-seven thousand, four hundred one".