1144093990 has 32 divisors (see below), whose sum is σ = 2221823520. Its totient is φ = 421665024.

The previous prime is 1144093981. The next prime is 1144093997. The reversal of 1144093990 is 993904411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144093997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66237 + ... + 81703.

It is an arithmetic number, because the mean of its divisors is an integer number (69431985).

Almost surely, 2^1144093990 is an apocalyptic number.

1144093990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1144093990 is a deficient number, since it is larger than the sum of its proper divisors (1077729530).

1144093990 is a wasteful number, since it uses less digits than its factorization.

1144093990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16056.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 1144093990 is about 33824.4584583405. The cubic root of 1144093990 is about 1045.8929479870.

The spelling of 1144093990 in words is "one billion, one hundred forty-four million, ninety-three thousand, nine hundred ninety".