1133395440 has 80 divisors (see below), whose sum is σ = 3720217248. Its totient is φ = 284459008.

The previous prime is 1133395427. The next prime is 1133395451. The reversal of 1133395440 is 445933311.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

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, 134817 + ... + 142976.

Almost surely, 2^1133395440 is an apocalyptic number.

1133395440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1133395440 is an abundant number, since it is smaller than the sum of its proper divisors (2586821808).

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

1133395440 is a wasteful number, since it uses less digits than its factorization.

1133395440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277826 (or 277820 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 1133395440 is about 33665.9388700211. The cubic root of 1133395440 is about 1042.6226460034.

The spelling of 1133395440 in words is "one billion, one hundred thirty-three million, three hundred ninety-five thousand, four hundred forty".