1422481 has 6 divisors (see below), whose sum is σ = 1487570. Its totient is φ = 1360128.

The previous prime is 1422469. The next prime is 1422493. The reversal of 1422481 is 1842241.

It is an interprime number because it is at equal distance from previous prime (1422469) and next prime (1422493).

It can be written as a sum of positive squares in only one way, i.e., 846400 + 576081 = 920^2 + 759^2 .

It is not a de Polignac number, because 1422481 - 2⁹ = 1421969 is a prime.

It is a super-2 number, since 2×1422481² = 4046904390722, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (1422461) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 816 + ... + 1873.

2^1422481 is an apocalyptic number.

It is an amenable number.

1422481 is a deficient number, since it is larger than the sum of its proper divisors (65089).

1422481 is an equidigital number, since it uses as much as digits as its factorization.

1422481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2735 (or 2712 counting only the distinct ones).

The product of its digits is 512, while the sum is 22.

The square root of 1422481 is about 1192.6780789467. The cubic root of 1422481 is about 112.4645089692.

The spelling of 1422481 in words is "one million, four hundred twenty-two thousand, four hundred eighty-one".