1504489905 has 24 divisors (see below), whose sum is σ = 2614803048. Its totient is φ = 800234496.

The previous prime is 1504489897. The next prime is 1504489907. The reversal of 1504489905 is 5099844051.

1504489905 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4941729 + 1499548176 = 2223^2 + 38724^2 .

It is not a de Polignac number, because 1504489905 - 2³ = 1504489897 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1504489907) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28032 + ... + 61601.

It is an arithmetic number, because the mean of its divisors is an integer number (108950127).

Almost surely, 2^1504489905 is an apocalyptic number.

1504489905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1504489905 is a deficient number, since it is larger than the sum of its proper divisors (1110313143).

1504489905 is a wasteful number, since it uses less digits than its factorization.

1504489905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90017 (or 90014 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The square root of 1504489905 is about 38787.7545753811. The cubic root of 1504489905 is about 1145.8552511275.

The spelling of 1504489905 in words is "one billion, five hundred four million, four hundred eighty-nine thousand, nine hundred five".