1133919990 has 96 divisors (see below), whose sum is σ = 3374631936. Its totient is φ = 258776640.

The previous prime is 1133919977. The next prime is 1133920027. The reversal of 1133919990 is 999193311.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 618375 + ... + 620205.

It is an arithmetic number, because the mean of its divisors is an integer number (35152416).

Almost surely, 2^1133919990 is an apocalyptic number.

1133919990 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 1133919990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1687315968).

1133919990 is an abundant number, since it is smaller than the sum of its proper divisors (2240711946).

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

1133919990 is a wasteful number, since it uses less digits than its factorization.

1133919990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2834 (or 2831 counting only the distinct ones).

The product of its (nonzero) digits is 59049, while the sum is 45.

The square root of 1133919990 is about 33673.7284837899. The cubic root of 1133919990 is about 1042.7834675900.

It can be divided in two parts, 11339 and 19990, that added together give a square (31329 = 177²).

The spelling of 1133919990 in words is "one billion, one hundred thirty-three million, nine hundred nineteen thousand, nine hundred ninety".