1427408 has 10 divisors (see below), whose sum is σ = 2765634. Its totient is φ = 713696.

The previous prime is 1427407. The next prime is 1427411. The reversal of 1427408 is 8047241.

It can be written as a sum of positive squares in only one way, i.e., 1373584 + 53824 = 1172^2 + 232^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1427401) by changing a digit.

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 as a sum of consecutive naturals, namely, 44591 + ... + 44622.

2^1427408 is an apocalyptic number.

It is an amenable number.

1427408 is a deficient number, since it is larger than the sum of its proper divisors (1338226).

1427408 is an equidigital number, since it uses as much as digits as its factorization.

1427408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89221 (or 89215 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 1427408 is about 1194.7418131128. The cubic root of 1427408 is about 112.5942058650.

The spelling of 1427408 in words is "one million, four hundred twenty-seven thousand, four hundred eight".