1143572740 has 24 divisors (see below), whose sum is σ = 2434403160. Its totient is φ = 451162368.

The previous prime is 1143572707. The next prime is 1143572761. The reversal of 1143572740 is 472753411.

It can be written as a sum of positive squares in 4 ways, for example, as 29615364 + 1113957376 = 5442^2 + 33376^2 .

It is a super-2 number, since 2×1143572740² = 2615517223342215200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1143572696 and 1143572705.

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, 390175 + ... + 393094.

It is an arithmetic number, because the mean of its divisors is an integer number (101433465).

Almost surely, 2^1143572740 is an apocalyptic number.

1143572740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1143572740 is an abundant number, since it is smaller than the sum of its proper divisors (1290830420).

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

1143572740 is a wasteful number, since it uses less digits than its factorization.

1143572740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783351 (or 783349 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 1143572740 is about 33816.7523573746. The cubic root of 1143572740 is about 1045.7340873461.

The spelling of 1143572740 in words is "one billion, one hundred forty-three million, five hundred seventy-two thousand, seven hundred forty".