1147020340 has 24 divisors (see below), whose sum is σ = 2414826792. Its totient is φ = 457649280.

The previous prime is 1147020323. The next prime is 1147020359. The reversal of 1147020340 is 430207411.

It can be written as a sum of positive squares in 4 ways, for example, as 281836944 + 865183396 = 16788^2 + 29414^2 .

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, 64291 + ... + 80170.

It is an arithmetic number, because the mean of its divisors is an integer number (100617783).

Almost surely, 2^1147020340 is an apocalyptic number.

1147020340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1147020340 is an abundant number, since it is smaller than the sum of its proper divisors (1267806452).

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

1147020340 is a wasteful number, since it uses less digits than its factorization.

1147020340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144867 (or 144865 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 1147020340 is about 33867.6887312967. The cubic root of 1147020340 is about 1046.7839129659.

Adding to 1147020340 its reverse (430207411), we get a palindrome (1577227751).

The spelling of 1147020340 in words is "one billion, one hundred forty-seven million, twenty thousand, three hundred forty".