1157571044 has 24 divisors (see below), whose sum is σ = 2319119040. Its totient is φ = 495249696.

The previous prime is 1157571043. The next prime is 1157571049. The reversal of 1157571044 is 4401757511.

It is a super-3 number, since 3×1157571044³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1157570995 and 1157571013.

It is not an unprimeable number, because it can be changed into a prime (1157571043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18779 + ... + 51650.

It is an arithmetic number, because the mean of its divisors is an integer number (96629960).

Almost surely, 2^1157571044 is an apocalyptic number.

1157571044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1157571044 is an abundant number, since it is smaller than the sum of its proper divisors (1161547996).

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

1157571044 is a wasteful number, since it uses less digits than its factorization.

1157571044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71027 (or 71025 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 35.

The square root of 1157571044 is about 34023.0957439208. The cubic root of 1157571044 is about 1049.9836865190.

The spelling of 1157571044 in words is "one billion, one hundred fifty-seven million, five hundred seventy-one thousand, forty-four".