1420456 has 16 divisors (see below), whose sum is σ = 2677140. Its totient is φ = 706560.

The previous prime is 1420429. The next prime is 1420483. The reversal of 1420456 is 6540241.

It is an interprime number because it is at equal distance from previous prime (1420429) and next prime (1420483).

It can be written as a sum of positive squares in 2 ways, for example, as 1416100 + 4356 = 1190^2 + 66^2 .

It is a pancake number, because a pancake can be divided into 1420456 parts by 1685 straight cuts.

It is a zygodrome in base 3.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1896 + ... + 2536.

2^1420456 is an apocalyptic number.

It is an amenable number.

1420456 is a deficient number, since it is larger than the sum of its proper divisors (1256684).

1420456 is a wasteful number, since it uses less digits than its factorization.

1420456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924 (or 920 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1420456 is about 1191.8288467729. The cubic root of 1420456 is about 112.4111166253.

Adding to 1420456 its reverse (6540241), we get a palindrome (7960697).

The spelling of 1420456 in words is "one million, four hundred twenty thousand, four hundred fifty-six".