1242726 has 8 divisors (see below), whose sum is σ = 2485464. Its totient is φ = 414240.

The previous prime is 1242643. The next prime is 1242739. The reversal of 1242726 is 6272421.

It is a sphenic number, since it is the product of 3 distinct primes.

1242726 is an admirable number.

It is a super-2 number, since 2×1242726² = 3088735822152, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1242696 and 1242705.

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, 103555 + ... + 103566.

It is an arithmetic number, because the mean of its divisors is an integer number (310683).

2^1242726 is an apocalyptic number.

1242726 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1242726 is a wasteful number, since it uses less digits than its factorization.

1242726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207126.

The product of its digits is 1344, while the sum is 24.

The square root of 1242726 is about 1114.7762107257. The cubic root of 1242726 is about 107.5123764370.

It can be divided in two parts, 124 and 2726, that added together give a triangular number (2850 = T₇₅).

The spelling of 1242726 in words is "one million, two hundred forty-two thousand, seven hundred twenty-six".