2920901956 has 72 divisors (see below), whose sum is σ = 6028947456. Its totient is φ = 1234517760.

The previous prime is 2920901923. The next prime is 2920901957. The reversal of 2920901956 is 6591090292.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2920901957) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6745516 + ... + 6745948.

Almost surely, 2^2920901956 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 2920901956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3014473728).

2920901956 is an abundant number, since it is smaller than the sum of its proper divisors (3108045500).

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

2920901956 is a wasteful number, since it uses less digits than its factorization.

2920901956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849 (or 840 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 2920901956 is about 54045.3694223659. The cubic root of 2920901956 is about 1429.4610510795.

The spelling of 2920901956 in words is "two billion, nine hundred twenty million, nine hundred one thousand, nine hundred fifty-six".