1427720722 has 16 divisors (see below), whose sum is σ = 2238607872. Its totient is φ = 681626880.

The previous prime is 1427720719. The next prime is 1427720729. The reversal of 1427720722 is 2270277241.

It is not an unprimeable number, because it can be changed into a prime (1427720729) 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, 354 + ... + 53437.

It is an arithmetic number, because the mean of its divisors is an integer number (139912992).

Almost surely, 2^1427720722 is an apocalyptic number.

1427720722 is a deficient number, since it is larger than the sum of its proper divisors (810887150).

1427720722 is a wasteful number, since it uses less digits than its factorization.

1427720722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54393.

The product of its (nonzero) digits is 21952, while the sum is 34.

The square root of 1427720722 is about 37785.1918348974. The cubic root of 1427720722 is about 1126.0242778760.

Adding to 1427720722 its reverse (2270277241), we get a palindrome (3697997963).

The spelling of 1427720722 in words is "one billion, four hundred twenty-seven million, seven hundred twenty thousand, seven hundred twenty-two".