2145552460 has 12 divisors (see below), whose sum is σ = 4505660208. Its totient is φ = 858220976.

The previous prime is 2145552419. The next prime is 2145552481. The reversal of 2145552460 is 642555412.

It is a super-2 number, since 2×2145552460² = 9206790717224103200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53638792 + ... + 53638831.

It is an arithmetic number, because the mean of its divisors is an integer number (375471684).

Almost surely, 2^2145552460 is an apocalyptic number.

2145552460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2145552460 is an abundant number, since it is smaller than the sum of its proper divisors (2360107748).

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

2145552460 is a wasteful number, since it uses less digits than its factorization.

2145552460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107277632 (or 107277630 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

The square root of 2145552460 is about 46320.1085922734. The cubic root of 2145552460 is about 1289.7723012169.

The spelling of 2145552460 in words is "two billion, one hundred forty-five million, five hundred fifty-two thousand, four hundred sixty".