1146081640 has 32 divisors (see below), whose sum is σ = 2813110560. Its totient is φ = 416756800.

The previous prime is 1146081617. The next prime is 1146081649. The reversal of 1146081640 is 461806411.

It is not an unprimeable number, because it can be changed into a prime (1146081649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1301926 + ... + 1302805.

It is an arithmetic number, because the mean of its divisors is an integer number (87909705).

Almost surely, 2^1146081640 is an apocalyptic number.

1146081640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1146081640 is an abundant number, since it is smaller than the sum of its proper divisors (1667028920).

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

1146081640 is a wasteful number, since it uses less digits than its factorization.

1146081640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2604753 (or 2604749 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 1146081640 is about 33853.8275531734. The cubic root of 1146081640 is about 1046.4982789052.

The spelling of 1146081640 in words is "one billion, one hundred forty-six million, eighty-one thousand, six hundred forty".