1155673736 has 32 divisors (see below), whose sum is σ = 2622119040. Its totient is φ = 466153728.

The previous prime is 1155673721. The next prime is 1155673789. The reversal of 1155673736 is 6373765511.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

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, 606020 + ... + 607923.

It is an arithmetic number, because the mean of its divisors is an integer number (81941220).

Almost surely, 2^1155673736 is an apocalyptic number.

It is an amenable number.

1155673736 is an abundant number, since it is smaller than the sum of its proper divisors (1466445304).

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

1155673736 is a wasteful number, since it uses less digits than its factorization.

1155673736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213973 (or 1213969 counting only the distinct ones).

The product of its digits is 396900, while the sum is 44.

The square root of 1155673736 is about 33995.2016614110. The cubic root of 1155673736 is about 1049.4097168974.

The spelling of 1155673736 in words is "one billion, one hundred fifty-five million, six hundred seventy-three thousand, seven hundred thirty-six".