40342243401 has 16 divisors (see below), whose sum is σ = 61156201920. Its totient is φ = 26269367040.

The previous prime is 40342243393. The next prime is 40342243429. The reversal of 40342243401 is 10434224304.

It is a happy number.

40342243401 is a `hidden beast` number, since 4 + 0 + 34 + 224 + 3 + 401 = 666.

It is not a de Polignac number, because 40342243401 - 2³ = 40342243393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (40342243471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17372760 + ... + 17375081.

It is an arithmetic number, because the mean of its divisors is an integer number (3822262620).

Almost surely, 2^40342243401 is an apocalyptic number.

It is an amenable number.

40342243401 is a deficient number, since it is larger than the sum of its proper divisors (20813958519).

40342243401 is a wasteful number, since it uses less digits than its factorization.

40342243401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34747893 (or 34747887 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 40342243401 its reverse (10434224304), we get a palindrome (50776467705).

The spelling of 40342243401 in words is "forty billion, three hundred forty-two million, two hundred forty-three thousand, four hundred one".