2938440 has 64 divisors (see below), whose sum is σ = 9020160. Its totient is φ = 765440.

The previous prime is 2938423. The next prime is 2938451. The reversal of 2938440 is 448392.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2938398 and 2938407.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5380 + ... + 5900.

It is an arithmetic number, because the mean of its divisors is an integer number (140940).

2^2938440 is an apocalyptic number.

2938440 is a gapful number since it is divisible by the number (20) 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 2938440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4510080).

2938440 is an abundant number, since it is smaller than the sum of its proper divisors (6081720).

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

2938440 is a wasteful number, since it uses less digits than its factorization.

2938440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582 (or 578 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 2938440 is about 1714.1878543497. The cubic root of 2938440 is about 143.2316326819.

The spelling of 2938440 in words is "two million, nine hundred thirty-eight thousand, four hundred forty".