40013401 has 4 divisors (see below), whose sum is σ = 40035600. Its totient is φ = 39991204.

The previous prime is 40013371. The next prime is 40013419. The reversal of 40013401 is 10431004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40013401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40013431) 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, 8131 + ... + 12088.

It is an arithmetic number, because the mean of its divisors is an integer number (10008900).

Almost surely, 2^40013401 is an apocalyptic number.

It is an amenable number.

40013401 is a deficient number, since it is larger than the sum of its proper divisors (22199).

40013401 is a wasteful number, since it uses less digits than its factorization.

40013401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22198.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 40013401 is about 6325.6146736898. The cubic root of 40013401 is about 342.0333773838.

Adding to 40013401 its reverse (10431004), we get a palindrome (50444405).

The spelling of 40013401 in words is "forty million, thirteen thousand, four hundred one".