1604505441 has 48 divisors (see below), whose sum is σ = 2874605760. Its totient is φ = 784465920.

The previous prime is 1604505437. The next prime is 1604505443. The reversal of 1604505441 is 1445054061.

It is not a de Polignac number, because 1604505441 - 2² = 1604505437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1604505399 and 1604505408.

It is not an unprimeable number, because it can be changed into a prime (1604505443) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1696 + ... + 56673.

It is an arithmetic number, because the mean of its divisors is an integer number (59887620).

Almost surely, 2^1604505441 is an apocalyptic number.

1604505441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1604505441 is a deficient number, since it is larger than the sum of its proper divisors (1270100319).

1604505441 is a wasteful number, since it uses less digits than its factorization.

1604505441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58414 (or 58407 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 1604505441 is about 40056.2784217406. The cubic root of 1604505441 is about 1170.7038988820.

The spelling of 1604505441 in words is "one billion, six hundred four million, five hundred five thousand, four hundred forty-one".