1155745044 has 24 divisors (see below), whose sum is σ = 2996376320. Its totient is φ = 385248312.

The previous prime is 1155745039. The next prime is 1155745079. The reversal of 1155745044 is 4405475511.

1155745044 is a `hidden beast` number, since 11 + 557 + 4 + 50 + 44 = 666.

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 7 ways as a sum of consecutive naturals, for example, 5350564 + ... + 5350779.

Almost surely, 2^1155745044 is an apocalyptic number.

It is an amenable number.

1155745044 is an abundant number, since it is smaller than the sum of its proper divisors (1840631276).

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

1155745044 is a wasteful number, since it uses less digits than its factorization.

1155745044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10701356 (or 10701348 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 36.

The square root of 1155745044 is about 33996.2504403059. The cubic root of 1155745044 is about 1049.4313002003.

The spelling of 1155745044 in words is "one billion, one hundred fifty-five million, seven hundred forty-five thousand, forty-four".