2918994408 has 160 divisors (see below), whose sum is σ = 9109964160. Its totient is φ = 865624320.

The previous prime is 2918994389. The next prime is 2918994437. The reversal of 2918994408 is 8044998192.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 330660 + ... + 339372.

It is an arithmetic number, because the mean of its divisors is an integer number (56937276).

Almost surely, 2^2918994408 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 2918994408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4554982080).

2918994408 is an abundant number, since it is smaller than the sum of its proper divisors (6190969752).

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

2918994408 is a wasteful number, since it uses less digits than its factorization.

2918994408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8789 (or 8776 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The square root of 2918994408 is about 54027.7188857720. The cubic root of 2918994408 is about 1429.1498048260.

The spelling of 2918994408 in words is "two billion, nine hundred eighteen million, nine hundred ninety-four thousand, four hundred eight".