1920250944 has 84 divisors (see below), whose sum is σ = 5511856896. Its totient is φ = 639176448.

The previous prime is 1920250919. The next prime is 1920251009. The reversal of 1920250944 is 4490520291.

It is a super-2 number, since 2×1920250944² = 7374727375865782272, which contains 22 as substring.

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 = 1920250899 and 1920250908.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 495157 + ... + 499019.

It is an arithmetic number, because the mean of its divisors is an integer number (65617344).

Almost surely, 2^1920250944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1920250944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2755928448).

1920250944 is an abundant number, since it is smaller than the sum of its proper divisors (3591605952).

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

1920250944 is a wasteful number, since it uses less digits than its factorization.

1920250944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4744 (or 4731 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 1920250944 is about 43820.6680003854. The cubic root of 1920250944 is about 1242.9471487278.

The spelling of 1920250944 in words is "one billion, nine hundred twenty million, two hundred fifty thousand, nine hundred forty-four".