1152252240 has 40 divisors (see below), whose sum is σ = 3571982688. Its totient is φ = 307267200.

The previous prime is 1152252203. The next prime is 1152252251. The reversal of 1152252240 is 422522511.

It is a tau number, because it is divible by the number of its divisors (40).

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

It is a self number, because there is not a number n which added to its sum of digits gives 1152252240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2400286 + ... + 2400765.

Almost surely, 2^1152252240 is an apocalyptic number.

1152252240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1152252240 is an abundant number, since it is smaller than the sum of its proper divisors (2419730448).

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

1152252240 is a wasteful number, since it uses less digits than its factorization.

1152252240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4801067 (or 4801061 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 1152252240 is about 33944.8411397078. The cubic root of 1152252240 is about 1048.3730631890.

Adding to 1152252240 its reverse (422522511), we get a palindrome (1574774751).

The spelling of 1152252240 in words is "one billion, one hundred fifty-two million, two hundred fifty-two thousand, two hundred forty".