1880145432 has 144 divisors (see below), whose sum is σ = 5805082920. Its totient is φ = 569669760.

The previous prime is 1880145427. The next prime is 1880145439. The reversal of 1880145432 is 2345410881.

1880145432 is a `hidden beast` number, since 1 + 8 + 80 + 145 + 432 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1880145439) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 231228 + ... + 239220.

Almost surely, 2^1880145432 is an apocalyptic number.

1880145432 is a gapful number since it is divisible by the number (12) 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 1880145432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2902541460).

1880145432 is an abundant number, since it is smaller than the sum of its proper divisors (3924937488).

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

1880145432 is a wasteful number, since it uses less digits than its factorization.

1880145432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8036 (or 8009 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 1880145432 is about 43360.6438144085. The cubic root of 1880145432 is about 1234.2329826182.

The spelling of 1880145432 in words is "one billion, eight hundred eighty million, one hundred forty-five thousand, four hundred thirty-two".