1421908 has 12 divisors (see below), whose sum is σ = 2568832. Its totient is φ = 687960.

The previous prime is 1421867. The next prime is 1421909. The reversal of 1421908 is 8091241.

It is a happy number.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5610 + ... + 5857.

2^1421908 is an apocalyptic number.

It is an amenable number.

1421908 is a deficient number, since it is larger than the sum of its proper divisors (1146924).

1421908 is a wasteful number, since it uses less digits than its factorization.

1421908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11502 (or 11500 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 1421908 is about 1192.4378390507. The cubic root of 1421908 is about 112.4494060567.

The spelling of 1421908 in words is "one million, four hundred twenty-one thousand, nine hundred eight".