2921969442 has 16 divisors (see below), whose sum is σ = 6678787392. Its totient is φ = 834848400.

The previous prime is 2921969419. The next prime is 2921969483. The reversal of 2921969442 is 2449691292.

2921969442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2921969391 and 2921969400.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34785309 + ... + 34785392.

It is an arithmetic number, because the mean of its divisors is an integer number (417424212).

Almost surely, 2^2921969442 is an apocalyptic number.

2921969442 is an abundant number, since it is smaller than the sum of its proper divisors (3756817950).

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

2921969442 is a wasteful number, since it uses less digits than its factorization.

2921969442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69570713.

The product of its digits is 559872, while the sum is 48.

The square root of 2921969442 is about 54055.2443524215. The cubic root of 2921969442 is about 1429.6351689638.

The spelling of 2921969442 in words is "two billion, nine hundred twenty-one million, nine hundred sixty-nine thousand, four hundred forty-two".