1242700 has 54 divisors (see below), whose sum is σ = 2931236. Its totient is φ = 456960.

The previous prime is 1242643. The next prime is 1242739. The reversal of 1242700 is 72421.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 28879 + ... + 28921.

2^1242700 is an apocalyptic number.

1242700 is a gapful number since it is divisible by the number (10) 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 1242700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1465618).

1242700 is an abundant number, since it is smaller than the sum of its proper divisors (1688536).

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

1242700 is a wasteful number, since it uses less digits than its factorization.

1242700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91 (or 67 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 1242700 is about 1114.7645491313. The cubic root of 1242700 is about 107.5116266495.

The spelling of 1242700 in words is "one million, two hundred forty-two thousand, seven hundred".