1157784896 has 28 divisors (see below), whose sum is σ = 2353520820. Its totient is φ = 564771840.

The previous prime is 1157784889. The next prime is 1157784923. The reversal of 1157784896 is 6984877511.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 37945600 + 1119839296 = 6160^2 + 33464^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217991 + ... + 223238.

It is an arithmetic number, because the mean of its divisors is an integer number (84054315).

Almost surely, 2^1157784896 is an apocalyptic number.

1157784896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1157784896 is an abundant number, since it is smaller than the sum of its proper divisors (1195735924).

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

1157784896 is an equidigital number, since it uses as much as digits as its factorization.

1157784896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441282 (or 441272 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 56.

The square root of 1157784896 is about 34026.2383463115. The cubic root of 1157784896 is about 1050.0483412362.

The spelling of 1157784896 in words is "one billion, one hundred fifty-seven million, seven hundred eighty-four thousand, eight hundred ninety-six".