1147734140 has 48 divisors (see below), whose sum is σ = 2899545600. Its totient is φ = 372796992.

The previous prime is 1147734127. The next prime is 1147734143. The reversal of 1147734140 is 414377411.

It is a super-2 number, since 2×1147734140² = 2634587312243079200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1147734097 and 1147734106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1147734143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213080 + ... + 218399.

It is an arithmetic number, because the mean of its divisors is an integer number (60407200).

Almost surely, 2^1147734140 is an apocalyptic number.

1147734140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1147734140 is an abundant number, since it is smaller than the sum of its proper divisors (1751811460).

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

1147734140 is a wasteful number, since it uses less digits than its factorization.

1147734140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431514 (or 431512 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 1147734140 is about 33878.2251601231. The cubic root of 1147734140 is about 1047.0010086266.

The spelling of 1147734140 in words is "one billion, one hundred forty-seven million, seven hundred thirty-four thousand, one hundred forty".