40426361 has 4 divisors (see below), whose sum is σ = 40826724. Its totient is φ = 40026000.

The previous prime is 40426349. The next prime is 40426403. The reversal of 40426361 is 16362404.

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 20757136 + 19669225 = 4556^2 + 4435^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40426361 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40426361.

It is not an unprimeable number, because it can be changed into a prime (40446361) 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, 200030 + ... + 200231.

It is an arithmetic number, because the mean of its divisors is an integer number (10206681).

Almost surely, 2^40426361 is an apocalyptic number.

It is an amenable number.

40426361 is a deficient number, since it is larger than the sum of its proper divisors (400363).

40426361 is a wasteful number, since it uses less digits than its factorization.

40426361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400362.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 40426361 is about 6358.1727721099. The cubic root of 40426361 is about 343.2060091762.

Adding to 40426361 its reverse (16362404), we get a palindrome (56788765).

The spelling of 40426361 in words is "forty million, four hundred twenty-six thousand, three hundred sixty-one".