1161826432 has 128 divisors (see below), whose sum is σ = 2610155520. Its totient is φ = 511488000.

The previous prime is 1161826423. The next prime is 1161826453. The reversal of 1161826432 is 2346281611.

It is a tau number, because it is divible by the number of its divisors (128).

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, 5209873 + ... + 5210095.

It is an arithmetic number, because the mean of its divisors is an integer number (20391840).

Almost surely, 2^1161826432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1161826432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1305077760).

1161826432 is an abundant number, since it is smaller than the sum of its proper divisors (1448329088).

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

1161826432 is a wasteful number, since it uses less digits than its factorization.

1161826432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382 (or 370 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 1161826432 is about 34085.5751308380. The cubic root of 1161826432 is about 1051.2687405577.

The spelling of 1161826432 in words is "one billion, one hundred sixty-one million, eight hundred twenty-six thousand, four hundred thirty-two".