1156300440 has 32 divisors (see below), whose sum is σ = 3468901680. Its totient is φ = 308346752.

The previous prime is 1156300421. The next prime is 1156300477. The reversal of 1156300440 is 440036511.

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 1156300440.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4817799 + ... + 4818038.

Almost surely, 2^1156300440 is an apocalyptic number.

1156300440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1156300440 is an abundant number, since it is smaller than the sum of its proper divisors (2312601240).

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

1156300440 is a wasteful number, since it uses less digits than its factorization.

1156300440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9635851 (or 9635847 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1156300440 is about 34004.4179482608. The cubic root of 1156300440 is about 1049.5993755070.

Adding to 1156300440 its reverse (440036511), we get a palindrome (1596336951).

The spelling of 1156300440 in words is "one billion, one hundred fifty-six million, three hundred thousand, four hundred forty".