1896040620 has 72 divisors (see below), whose sum is σ = 5792776080. Its totient is φ = 501966720.

The previous prime is 1896040591. The next prime is 1896040669. The reversal of 1896040620 is 260406981.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12871 + ... + 62910.

Almost surely, 2^1896040620 is an apocalyptic number.

1896040620 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 1896040620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2896388040).

1896040620 is an abundant number, since it is smaller than the sum of its proper divisors (3896735460).

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

1896040620 is a wasteful number, since it uses less digits than its factorization.

1896040620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75935 (or 75930 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 1896040620 is about 43543.5485462542. The cubic root of 1896040620 is about 1237.7013911601.

The spelling of 1896040620 in words is "one billion, eight hundred ninety-six million, forty thousand, six hundred twenty".