1523485440 has 108 divisors (see below), whose sum is σ = 5271140784. Its totient is φ = 406259712.

The previous prime is 1523485427. The next prime is 1523485487. The reversal of 1523485440 is 445843251.

It is a happy number.

1523485440 is a `hidden beast` number, since 1 + 523 + 48 + 54 + 40 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 1523485395 and 1523485404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54604 + ... + 77643.

Almost surely, 2^1523485440 is an apocalyptic number.

1523485440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1523485440 is an abundant number, since it is smaller than the sum of its proper divisors (3747655344).

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

1523485440 is a wasteful number, since it uses less digits than its factorization.

1523485440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132274 (or 132257 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The square root of 1523485440 is about 39031.8516086542. The cubic root of 1523485440 is about 1150.6575798102.

The spelling of 1523485440 in words is "one billion, five hundred twenty-three million, four hundred eighty-five thousand, four hundred forty".