9144038790 has 48 divisors (see below), whose sum is σ = 23807373408. Its totient is φ = 2435038848.

The previous prime is 9144038789. The next prime is 9144038791. The reversal of 9144038790 is 978304419.

9144038790 is a `hidden beast` number, since 91 + 440 + 38 + 7 + 90 = 666.

It is an interprime number because it is at equal distance from previous prime (9144038789) and next prime (9144038791).

It is a super-2 number, since 2×9144038790² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9144038791) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4447 + ... + 135306.

It is an arithmetic number, because the mean of its divisors is an integer number (495986946).

Almost surely, 2^9144038790 is an apocalyptic number.

9144038790 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

9144038790 is an abundant number, since it is smaller than the sum of its proper divisors (14663334618).

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

9144038790 is a wasteful number, since it uses less digits than its factorization.

9144038790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140493 (or 140490 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 9144038790 is about 95624.4675279293. The cubic root of 9144038790 is about 2091.1219139211.

The spelling of 9144038790 in words is "nine billion, one hundred forty-four million, thirty-eight thousand, seven hundred ninety".