1411040721 has 12 divisors (see below), whose sum is σ = 1922277872. Its totient is φ = 920674728.

The previous prime is 1411040717. The next prime is 1411040737. The reversal of 1411040721 is 1270401141.

It is not a de Polignac number, because 1411040721 - 2² = 1411040717 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1411040021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99835 + ... + 113088.

Almost surely, 2^1411040721 is an apocalyptic number.

It is an amenable number.

1411040721 is a deficient number, since it is larger than the sum of its proper divisors (511237151).

1411040721 is an equidigital number, since it uses as much as digits as its factorization.

1411040721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213020 (or 212973 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 1411040721 is about 37563.8219700818. The cubic root of 1411040721 is about 1121.6219911403.

Adding to 1411040721 its reverse (1270401141), we get a palindrome (2681441862).

The spelling of 1411040721 in words is "one billion, four hundred eleven million, forty thousand, seven hundred twenty-one".