1920888394350 has 96 divisors (see below), whose sum is σ = 4898704650336. Its totient is φ = 497766182400.

The previous prime is 1920888394333. The next prime is 1920888394351. The reversal of 1920888394350 is 534938880291.

It is a super-2 number, since 2×1920888394350² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1920888394351) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4206220 + ... + 4640480.

It is an arithmetic number, because the mean of its divisors is an integer number (51028173441).

Almost surely, 2^{1920888394350} is an apocalyptic number.

1920888394350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1920888394350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2449352325168).

1920888394350 is an abundant number, since it is smaller than the sum of its proper divisors (2977816255986).

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

1920888394350 is a wasteful number, since it uses less digits than its factorization.

1920888394350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435110 (or 435105 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 60.

The spelling of 1920888394350 in words is "one trillion, nine hundred twenty billion, eight hundred eighty-eight million, three hundred ninety-four thousand, three hundred fifty".