3427280 has 20 divisors (see below), whose sum is σ = 7968612. Its totient is φ = 1370880.

The previous prime is 3427279. The next prime is 3427289. The reversal of 3427280 is 827243.

It can be written as a sum of positive squares in 2 ways, for example, as 2226064 + 1201216 = 1492^2 + 1096^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3427289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21341 + ... + 21500.

Almost surely, 2^3427280 is an apocalyptic number.

It is an amenable number.

3427280 is an abundant number, since it is smaller than the sum of its proper divisors (4541332).

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

3427280 is a wasteful number, since it uses less digits than its factorization.

3427280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42854 (or 42848 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 3427280 is about 1851.2914411297. The cubic root of 3427280 is about 150.7705533903.

The spelling of 3427280 in words is "three million, four hundred twenty-seven thousand, two hundred eighty".