1157542038 has 24 divisors (see below), whose sum is σ = 2561371488. Its totient is φ = 377637552.

The previous prime is 1157542033. The next prime is 1157542051. The reversal of 1157542038 is 8302457511.

1157542038 is a `hidden beast` number, since 11 + 575 + 42 + 0 + 38 = 666.

1157542038 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1157541993 and 1157542011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157542033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 683281 + ... + 684972.

It is an arithmetic number, because the mean of its divisors is an integer number (106723812).

Almost surely, 2^1157542038 is an apocalyptic number.

1157542038 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1157542038 is an abundant number, since it is smaller than the sum of its proper divisors (1403829450).

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

1157542038 is a wasteful number, since it uses less digits than its factorization.

1157542038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368308 (or 1368305 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 1157542038 is about 34022.6694719859. The cubic root of 1157542038 is about 1049.9749164076.

Adding to 1157542038 its reverse (8302457511), we get a palindrome (9459999549).

The spelling of 1157542038 in words is "one billion, one hundred fifty-seven million, five hundred forty-two thousand, thirty-eight".