2657380 has 48 divisors (see below), whose sum is σ = 6241536. Its totient is φ = 942080.

The previous prime is 2657371. The next prime is 2657381. The reversal of 2657380 is 837562.

It is not an unprimeable number, because it can be changed into a prime (2657381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10212 + ... + 10468.

It is an arithmetic number, because the mean of its divisors is an integer number (130032).

2^2657380 is an apocalyptic number.

2657380 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 2657380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3120768).

2657380 is an abundant number, since it is smaller than the sum of its proper divisors (3584156).

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

2657380 is a wasteful number, since it uses less digits than its factorization.

2657380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324 (or 322 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 2657380 is about 1630.1472326143. The cubic root of 2657380 is about 138.5110922663.

The spelling of 2657380 in words is "two million, six hundred fifty-seven thousand, three hundred eighty".