1604908 has 12 divisors (see below), whose sum is σ = 2817472. Its totient is φ = 799920.

The previous prime is 1604857. The next prime is 1604923. The reversal of 1604908 is 8094061.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

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 3 ways as a sum of consecutive naturals, for example, 2098 + ... + 2758.

2^1604908 is an apocalyptic number.

It is an amenable number.

1604908 is a deficient number, since it is larger than the sum of its proper divisors (1212564).

1604908 is a wasteful number, since it uses less digits than its factorization.

1604908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272 (or 1270 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1604908 is about 1266.8496359079. The cubic root of 1604908 is about 117.0801797788.

Adding to 1604908 its reverse (8094061), we get a palindrome (9698969).

The spelling of 1604908 in words is "one million, six hundred four thousand, nine hundred eight".