1045245240 has 192 divisors, whose sum is σ = 3682355040. Its totient is φ = 255605760.

The previous prime is 1045245217. The next prime is 1045245251. The reversal of 1045245240 is 425425401.

It is a super-2 number, since 2×1045245240² = 2185075223485315200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 808995 + ... + 810285.

Almost surely, 2^1045245240 is an apocalyptic number.

1045245240 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 1045245240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1841177520).

1045245240 is an abundant number, since it is smaller than the sum of its proper divisors (2637109800).

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

1045245240 is a wasteful number, since it uses less digits than its factorization.

1045245240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1494 (or 1487 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 1045245240 is about 32330.2527054770. The cubic root of 1045245240 is about 1014.8598381204.

The spelling of 1045245240 in words is "one billion, forty-five million, two hundred forty-five thousand, two hundred forty".