1401040445 has 8 divisors (see below), whose sum is σ = 1921426944. Its totient is φ = 960713424.

The previous prime is 1401040441. The next prime is 1401040463. The reversal of 1401040445 is 5440401041.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1401040445 - 2² = 1401040441 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 1401040445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401040441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20014829 + ... + 20014898.

It is an arithmetic number, because the mean of its divisors is an integer number (240178368).

Almost surely, 2^1401040445 is an apocalyptic number.

It is an amenable number.

1401040445 is a deficient number, since it is larger than the sum of its proper divisors (520386499).

1401040445 is an equidigital number, since it uses as much as digits as its factorization.

1401040445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40029739.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 1401040445 is about 37430.4748166517. The cubic root of 1401040445 is about 1118.9660006766.

Adding to 1401040445 its reverse (5440401041), we get a palindrome (6841441486).

The spelling of 1401040445 in words is "one billion, four hundred one million, forty thousand, four hundred forty-five".