1613280 has 48 divisors (see below), whose sum is σ = 5083344. Its totient is φ = 430080.

The previous prime is 1613279. The next prime is 1613321. The reversal of 1613280 is 823161.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1201 + ... + 2160.

It is an arithmetic number, because the mean of its divisors is an integer number (105903).

2^1613280 is an apocalyptic number.

1613280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1613280 is an abundant number, since it is smaller than the sum of its proper divisors (3470064).

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

1613280 is a wasteful number, since it uses less digits than its factorization.

1613280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3379 (or 3371 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1613280 is about 1270.1495974884. The cubic root of 1613280 is about 117.2834096611.

The spelling of 1613280 in words is "one million, six hundred thirteen thousand, two hundred eighty".