1604472 has 16 divisors (see below), whose sum is σ = 4011240. Its totient is φ = 534816.

The previous prime is 1604461. The next prime is 1604479. The reversal of 1604472 is 2744061.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 66853 = 1604472 / (1 + 6 + 0 + 4 + 4 + 7 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604479) 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, 33403 + ... + 33450.

2^1604472 is an apocalyptic number.

1604472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1604472 is an abundant number, since it is smaller than the sum of its proper divisors (2406768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1604472 is a wasteful number, since it uses less digits than its factorization.

1604472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66862 (or 66858 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 1604472 is about 1266.6775438129. The cubic root of 1604472 is about 117.0695765580.

The spelling of 1604472 in words is "one million, six hundred four thousand, four hundred seventy-two".