2921790832 has 80 divisors (see below), whose sum is σ = 6253885440. Its totient is φ = 1317609216.

The previous prime is 2921790761. The next prime is 2921790841. The reversal of 2921790832 is 2380971292.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 455713 + ... + 462079.

It is an arithmetic number, because the mean of its divisors is an integer number (78173568).

Almost surely, 2^2921790832 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 2921790832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3126942720).

2921790832 is an abundant number, since it is smaller than the sum of its proper divisors (3332094608).

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

2921790832 is a wasteful number, since it uses less digits than its factorization.

2921790832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6470 (or 6464 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 2921790832 is about 54053.5922210541. The cubic root of 2921790832 is about 1429.6060388006.

The spelling of 2921790832 in words is "two billion, nine hundred twenty-one million, seven hundred ninety thousand, eight hundred thirty-two".