1146202640 has 80 divisors (see below), whose sum is σ = 2921438016. Its totient is φ = 414758400.

The previous prime is 1146202637. The next prime is 1146202669. The reversal of 1146202640 is 462026411.

It is a tau number, because it is divible by the number of its divisors (80).

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, 182594 + ... + 188766.

Almost surely, 2^1146202640 is an apocalyptic number.

1146202640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1146202640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1460719008).

1146202640 is an abundant number, since it is smaller than the sum of its proper divisors (1775235376).

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

1146202640 is a wasteful number, since it uses less digits than its factorization.

1146202640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6408 (or 6402 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 1146202640 is about 33855.6146008310. The cubic root of 1146202640 is about 1046.5351063676.

It can be divided in two parts, 1 and 146202640, that added together give a palindrome (146202641).

The spelling of 1146202640 in words is "one billion, one hundred forty-six million, two hundred two thousand, six hundred forty".