2351280 has 80 divisors (see below), whose sum is σ = 7437024. Its totient is φ = 614400.

The previous prime is 2351263. The next prime is 2351281. The reversal of 2351280 is 821532.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (2351281) 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, 23230 + ... + 23330.

2^2351280 is an apocalyptic number.

2351280 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 2351280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3718512).

2351280 is an abundant number, since it is smaller than the sum of its proper divisors (5085744).

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

2351280 is a wasteful number, since it uses less digits than its factorization.

2351280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2351280 is about 1533.3884048081. The cubic root of 2351280 is about 132.9744236345.

The spelling of 2351280 in words is "two million, three hundred fifty-one thousand, two hundred eighty".