1975223880 has 640 divisors, whose sum is σ = 8279884800. Its totient is φ = 412065792.

The previous prime is 1975223857. The next prime is 1975223881. The reversal of 1975223880 is 883225791.

It is a happy number.

1975223880 is a `hidden beast` number, since 1 + 97 + 522 + 38 + 8 + 0 = 666.

It is a super-2 number, since 2×1975223880² = 7803018752244508800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1975223881) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 18121266 + ... + 18121374.

It is an arithmetic number, because the mean of its divisors is an integer number (12937320).

Almost surely, 2^1975223880 is an apocalyptic number.

1975223880 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 1975223880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4139942400).

1975223880 is an abundant number, since it is smaller than the sum of its proper divisors (6304660920).

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

1975223880 is a wasteful number, since it uses less digits than its factorization.

1975223880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 1975223880 is about 44443.4908619924. The cubic root of 1975223880 is about 1254.6967580016.

The spelling of 1975223880 in words is "one billion, nine hundred seventy-five million, two hundred twenty-three thousand, eight hundred eighty".