1401040440347 has 4 divisors (see below), whose sum is σ = 1402881492936. Its totient is φ = 1399199387760.

The previous prime is 1401040440287. The next prime is 1401040440353. The reversal of 1401040440347 is 7430440401041.

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

It is a cyclic number.

It is not a de Polignac number, because 1401040440347 - 2¹⁸ = 1401040178203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1401040440047) 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, 920525153 + ... + 920526674.

It is an arithmetic number, because the mean of its divisors is an integer number (350720373234).

Almost surely, 2^{1401040440347} is an apocalyptic number.

1401040440347 is a deficient number, since it is larger than the sum of its proper divisors (1841052589).

1401040440347 is an equidigital number, since it uses as much as digits as its factorization.

1401040440347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1841052588.

The product of its (nonzero) digits is 21504, while the sum is 32.

Adding to 1401040440347 its reverse (7430440401041), we get a palindrome (8831480841388).

The spelling of 1401040440347 in words is "one trillion, four hundred one billion, forty million, four hundred forty thousand, three hundred forty-seven".