1144729390 has 32 divisors (see below), whose sum is σ = 2369893824. Its totient is φ = 389975040.

The previous prime is 1144729367. The next prime is 1144729403. The reversal of 1144729390 is 939274411.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41091 + ... + 63070.

It is an arithmetic number, because the mean of its divisors is an integer number (74059182).

Almost surely, 2^1144729390 is an apocalyptic number.

1144729390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1144729390 is an abundant number, since it is smaller than the sum of its proper divisors (1225164434).

1144729390 is a wasteful number, since it uses less digits than its factorization.

1144729390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104332.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 1144729390 is about 33833.8497661735. The cubic root of 1144729390 is about 1046.0865327206.

The spelling of 1144729390 in words is "one billion, one hundred forty-four million, seven hundred twenty-nine thousand, three hundred ninety".