1932720840 has 192 divisors, whose sum is σ = 6483110400. Its totient is φ = 499078656.

The previous prime is 1932720827. The next prime is 1932720919. The reversal of 1932720840 is 480272391.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a junction number, because it is equal to n+sod(n) for n = 1932720795 and 1932720804.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1742206 + ... + 1743314.

It is an arithmetic number, because the mean of its divisors is an integer number (33766200).

Almost surely, 2^1932720840 is an apocalyptic number.

1932720840 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 1932720840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3241555200).

1932720840 is an abundant number, since it is smaller than the sum of its proper divisors (4550389560).

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

1932720840 is a wasteful number, since it uses less digits than its factorization.

1932720840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276 (or 1269 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 1932720840 is about 43962.7210258874. The cubic root of 1932720840 is about 1245.6318658371.

The spelling of 1932720840 in words is "one billion, nine hundred thirty-two million, seven hundred twenty thousand, eight hundred forty".