1045025540 has 48 divisors (see below), whose sum is σ = 2389973040. Its totient is φ = 381511680.

The previous prime is 1045025483. The next prime is 1045025557. The reversal of 1045025540 is 455205401.

It can be written as a sum of positive squares in 8 ways, for example, as 94906564 + 950118976 = 9742^2 + 30824^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

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, 560 + ... + 45720.

It is an arithmetic number, because the mean of its divisors is an integer number (49791105).

Almost surely, 2^1045025540 is an apocalyptic number.

1045025540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1045025540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1194986520).

1045025540 is an abundant number, since it is smaller than the sum of its proper divisors (1344947500).

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

1045025540 is a wasteful number, since it uses less digits than its factorization.

1045025540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45272 (or 45270 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 1045025540 is about 32326.8547805072. The cubic root of 1045025540 is about 1014.7887287062.

The spelling of 1045025540 in words is "one billion, forty-five million, twenty-five thousand, five hundred forty".