1926053640 has 320 divisors, whose sum is σ = 7458168960. Its totient is φ = 436700160.

The previous prime is 1926053599. The next prime is 1926053651. The reversal of 1926053640 is 463506291.

It is a happy number.

1926053640 is a `hidden beast` number, since 1 + 9 + 2 + 6 + 0 + 5 + 3 + 640 = 666.

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 = 1926053595 and 1926053604.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3696580 + ... + 3697100.

It is an arithmetic number, because the mean of its divisors is an integer number (23306778).

Almost surely, 2^1926053640 is an apocalyptic number.

1926053640 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 1926053640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3729084480).

1926053640 is an abundant number, since it is smaller than the sum of its proper divisors (5532115320).

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

1926053640 is a wasteful number, since it uses less digits than its factorization.

1926053640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714 (or 701 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 1926053640 is about 43886.8276365472. The cubic root of 1926053640 is about 1244.1978865867.

It can be divided in two parts, 19260 and 53640, that added together give a square (72900 = 270²).

The spelling of 1926053640 in words is "one billion, nine hundred twenty-six million, fifty-three thousand, six hundred forty".