1422730 has 16 divisors (see below), whose sum is σ = 2711880. Its totient is φ = 535552.

The previous prime is 1422727. The next prime is 1422749. The reversal of 1422730 is 372241.

It can be written as a sum of positive squares in 4 ways, for example, as 1366561 + 56169 = 1169^2 + 237^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1422698 and 1422707.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4015 + ... + 4354.

2^1422730 is an apocalyptic number.

1422730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1422730 is a deficient number, since it is larger than the sum of its proper divisors (1289150).

1422730 is a wasteful number, since it uses less digits than its factorization.

1422730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8393.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 1422730 is about 1192.7824613063. The cubic root of 1422730 is about 112.4710707508.

Adding to 1422730 its reverse (372241), we get a palindrome (1794971).

The spelling of 1422730 in words is "one million, four hundred twenty-two thousand, seven hundred thirty".