1157453490 has 64 divisors (see below), whose sum is σ = 2873180160. Its totient is φ = 298234560.

The previous prime is 1157453477. The next prime is 1157453491. The reversal of 1157453490 is 943547511.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1157453491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106195 + ... + 116585.

It is an arithmetic number, because the mean of its divisors is an integer number (44893440).

Almost surely, 2^1157453490 is an apocalyptic number.

1157453490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1157453490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1436590080).

1157453490 is an abundant number, since it is smaller than the sum of its proper divisors (1715726670).

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

1157453490 is a wasteful number, since it uses less digits than its factorization.

1157453490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10527.

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 1157453490 is about 34021.3681382745. The cubic root of 1157453490 is about 1049.9481425636.

The spelling of 1157453490 in words is "one billion, one hundred fifty-seven million, four hundred fifty-three thousand, four hundred ninety".