1242580 has 12 divisors (see below), whose sum is σ = 2609460. Its totient is φ = 497024.

The previous prime is 1242569. The next prime is 1242601. The reversal of 1242580 is 852421.

It can be written as a sum of positive squares in 2 ways, for example, as 887364 + 355216 = 942^2 + 596^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31045 + ... + 31084.

It is an arithmetic number, because the mean of its divisors is an integer number (217455).

2^1242580 is an apocalyptic number.

1242580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242580 is an abundant number, since it is smaller than the sum of its proper divisors (1366880).

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

1242580 is a wasteful number, since it uses less digits than its factorization.

1242580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62138 (or 62136 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 1242580 is about 1114.7107248071. The cubic root of 1242580 is about 107.5081659562.

It can be divided in two parts, 124 and 2580, that added together give a square (2704 = 52²).

The spelling of 1242580 in words is "one million, two hundred forty-two thousand, five hundred eighty".