1161220746 has 32 divisors (see below), whose sum is σ = 2662894080. Its totient is φ = 330692976.

The previous prime is 1161220741. The next prime is 1161220747. The reversal of 1161220746 is 6470221611.

It is not an unprimeable number, because it can be changed into a prime (1161220741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32136 + ... + 57923.

It is an arithmetic number, because the mean of its divisors is an integer number (83215440).

Almost surely, 2^1161220746 is an apocalyptic number.

1161220746 is an abundant number, since it is smaller than the sum of its proper divisors (1501673334).

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

1161220746 is a wasteful number, since it uses less digits than its factorization.

1161220746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90378.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 1161220746 is about 34076.6891877717. The cubic root of 1161220746 is about 1051.0860255320.

The spelling of 1161220746 in words is "one billion, one hundred sixty-one million, two hundred twenty thousand, seven hundred forty-six".