1022405401 has 2 divisors, whose sum is σ = 1022405402. Its totient is φ = 1022405400.

The previous prime is 1022405393. The next prime is 1022405413. The reversal of 1022405401 is 1045042201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 815045401 + 207360000 = 28549^2 + 14400^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022405401 - 2³ = 1022405393 is a prime.

It is not a weakly prime, because it can be changed into another prime (1022405431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511202700 + 511202701.

It is an arithmetic number, because the mean of its divisors is an integer number (511202701).

Almost surely, 2^1022405401 is an apocalyptic number.

It is an amenable number.

1022405401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022405401 is an equidigital number, since it uses as much as digits as its factorization.

1022405401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 1022405401 is about 31975.0746832591. The cubic root of 1022405401 is about 1007.4133730911.

Adding to 1022405401 its reverse (1045042201), we get a palindrome (2067447602).

The spelling of 1022405401 in words is "one billion, twenty-two million, four hundred five thousand, four hundred one".