1146650640 has 40 divisors (see below), whose sum is σ = 3554617728. Its totient is φ = 305773440.

The previous prime is 1146650621. The next prime is 1146650647. The reversal of 1146650640 is 460566411.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (1146650647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2388616 + ... + 2389095.

Almost surely, 2^1146650640 is an apocalyptic number.

1146650640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1146650640 is an abundant number, since it is smaller than the sum of its proper divisors (2407967088).

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

1146650640 is a wasteful number, since it uses less digits than its factorization.

1146650640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4777727 (or 4777721 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 1146650640 is about 33862.2302868550. The cubic root of 1146650640 is about 1046.6714367280.

The spelling of 1146650640 in words is "one billion, one hundred forty-six million, six hundred fifty thousand, six hundred forty".