2146497920 has 96 divisors (see below), whose sum is σ = 5969350080. Its totient is φ = 735931392.

The previous prime is 2146497889. The next prime is 2146497923. The reversal of 2146497920 is 297946412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2146497923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2864 + ... + 65583.

It is an arithmetic number, because the mean of its divisors is an integer number (62180730).

Almost surely, 2^2146497920 is an apocalyptic number.

2146497920 is a gapful number since it is divisible by the number (20) 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 2146497920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2984675040).

2146497920 is an abundant number, since it is smaller than the sum of its proper divisors (3822852160).

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

2146497920 is an equidigital number, since it uses as much as digits as its factorization.

2146497920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68480 (or 68461 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 2146497920 is about 46330.3131869406. The cubic root of 2146497920 is about 1289.9617239209.

The spelling of 2146497920 in words is "two billion, one hundred forty-six million, four hundred ninety-seven thousand, nine hundred twenty".