1133445780 has 36 divisors (see below), whose sum is σ = 3438119412. Its totient is φ = 302252160.

The previous prime is 1133445769. The next prime is 1133445809. The reversal of 1133445780 is 875443311.

It is a happy number.

1133445780 is a `hidden beast` number, since 1 + 133 + 445 + 7 + 80 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 713851524 + 419594256 = 26718^2 + 20484^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3148281 + ... + 3148640.

It is an arithmetic number, because the mean of its divisors is an integer number (95503317).

Almost surely, 2^1133445780 is an apocalyptic number.

1133445780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1133445780 is an abundant number, since it is smaller than the sum of its proper divisors (2304673632).

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

1133445780 is a wasteful number, since it uses less digits than its factorization.

1133445780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6296936 (or 6296931 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 1133445780 is about 33666.6865016443. The cubic root of 1133445780 is about 1042.6380818772.

It can be divided in two parts, 1133445 and 780, that added together give a square (1134225 = 1065²).

The spelling of 1133445780 in words is "one billion, one hundred thirty-three million, four hundred forty-five thousand, seven hundred eighty".