1609488 has 30 divisors (see below), whose sum is σ = 4504734. Its totient is φ = 536448.

The previous prime is 1609477. The next prime is 1609493. The reversal of 1609488 is 8849061.

It is a happy number.

1609488 is a `hidden beast` number, since 1 + 609 + 48 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1557504 + 51984 = 1248^2 + 228^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a plaindrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5445 + ... + 5732.

2^1609488 is an apocalyptic number.

1609488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1609488 is an abundant number, since it is smaller than the sum of its proper divisors (2895246).

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

1609488 is a wasteful number, since it uses less digits than its factorization.

1609488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11191 (or 11182 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 1609488 is about 1268.6559817382. The cubic root of 1609488 is about 117.1914463738.

The spelling of 1609488 in words is "one million, six hundred nine thousand, four hundred eighty-eight".