2945988 has 72 divisors (see below), whose sum is σ = 8080800. Its totient is φ = 902016.

The previous prime is 2945983. The next prime is 2945993. The reversal of 2945988 is 8895492.

It is an interprime number because it is at equal distance from previous prime (2945983) and next prime (2945993).

It is a super-2 number, since 2×2945988² = 17357690592288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2945983) 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, 40320 + ... + 40392.

2^2945988 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 2945988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4040400).

2945988 is an abundant number, since it is smaller than the sum of its proper divisors (5134812).

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

2945988 is a wasteful number, since it uses less digits than its factorization.

2945988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 156 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 2945988 is about 1716.3880680079. The cubic root of 2945988 is about 143.3541679947.

The spelling of 2945988 in words is "two million, nine hundred forty-five thousand, nine hundred eighty-eight".