1145465388 has 240 divisors, whose sum is σ = 3337044480. Its totient is φ = 341241984.

The previous prime is 1145465383. The next prime is 1145465393. The reversal of 1145465388 is 8835645411.

It is an interprime number because it is at equal distance from previous prime (1145465383) and next prime (1145465393).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145465383) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 10705231 + ... + 10705337.

It is an arithmetic number, because the mean of its divisors is an integer number (13904352).

Almost surely, 2^1145465388 is an apocalyptic number.

1145465388 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1145465388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1668522240).

1145465388 is an abundant number, since it is smaller than the sum of its proper divisors (2191579092).

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

1145465388 is a wasteful number, since it uses less digits than its factorization.

1145465388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 215 counting only the distinct ones).

The product of its digits is 460800, while the sum is 45.

The square root of 1145465388 is about 33844.7246701757. The cubic root of 1145465388 is about 1046.3106767138.

The spelling of 1145465388 in words is "one billion, one hundred forty-five million, four hundred sixty-five thousand, three hundred eighty-eight".