1045403520 has 128 divisors (see below), whose sum is σ = 3808304640. Its totient is φ = 238946304.

The previous prime is 1045403507. The next prime is 1045403531. The reversal of 1045403520 is 253045401.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25452 + ... + 52331.

It is an arithmetic number, because the mean of its divisors is an integer number (29752380).

Almost surely, 2^1045403520 is an apocalyptic number.

1045403520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1045403520 is an abundant number, since it is smaller than the sum of its proper divisors (2762901120).

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

1045403520 is an equidigital number, since it uses as much as digits as its factorization.

1045403520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77812 (or 77800 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 1045403520 is about 32332.7004749062. The cubic root of 1045403520 is about 1014.9110617955.

Adding to 1045403520 its reverse (253045401), we get a palindrome (1298448921).

The spelling of 1045403520 in words is "one billion, forty-five million, four hundred three thousand, five hundred twenty".