2285172000 has 288 divisors, whose sum is σ = 8414025984. Its totient is φ = 609120000.

The previous prime is 2285171983. The next prime is 2285172013. The reversal of 2285172000 is 2715822.

It is a tau number, because it is divible by the number of its divisors (288).

It is a super-2 number, since 2×2285172000² = 10444022139168000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 970825 + ... + 973175.

It is an arithmetic number, because the mean of its divisors is an integer number (29215368).

Almost surely, 2^2285172000 is an apocalyptic number.

2285172000 is a gapful number since it is divisible by the number (20) 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 2285172000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4207012992).

2285172000 is an abundant number, since it is smaller than the sum of its proper divisors (6128853984).

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

2285172000 is an equidigital number, since it uses as much as digits as its factorization.

2285172000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2391 (or 2361 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 2285172000 is about 47803.4726772020. The cubic root of 2285172000 is about 1317.1633298715.

Adding to 2285172000 its reverse (2715822), we get a palindrome (2287887822).

The spelling of 2285172000 in words is "two billion, two hundred eighty-five million, one hundred seventy-two thousand".