2122945464 has 64 divisors (see below), whose sum is σ = 5539168800. Its totient is φ = 677175296.

The previous prime is 2122945457. The next prime is 2122945469. The reversal of 2122945464 is 4645492212.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122945469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65152 + ... + 92144.

Almost surely, 2^2122945464 is an apocalyptic number.

2122945464 is a gapful number since it is divisible by the number (24) 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 2122945464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2769584400).

2122945464 is an abundant number, since it is smaller than the sum of its proper divisors (3416223336).

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

2122945464 is a wasteful number, since it uses less digits than its factorization.

2122945464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27144 (or 27140 counting only the distinct ones).

The product of its digits is 138240, while the sum is 39.

The square root of 2122945464 is about 46075.4323256983. The cubic root of 2122945464 is about 1285.2263252077.

The spelling of 2122945464 in words is "two billion, one hundred twenty-two million, nine hundred forty-five thousand, four hundred sixty-four".