1252830 has 16 divisors (see below), whose sum is σ = 3006864. Its totient is φ = 334080.

The previous prime is 1252819. The next prime is 1252843. The reversal of 1252830 is 382521.

It is a junction number, because it is equal to n+sod(n) for n = 1252797 and 1252806.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20851 + ... + 20910.

It is an arithmetic number, because the mean of its divisors is an integer number (187929).

2^1252830 is an apocalyptic number.

1252830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1252830 is an abundant number, since it is smaller than the sum of its proper divisors (1754034).

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

1252830 is a wasteful number, since it uses less digits than its factorization.

1252830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41771.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1252830 is about 1119.2988876971. The cubic root of 1252830 is about 107.8029672311.

The spelling of 1252830 in words is "one million, two hundred fifty-two thousand, eight hundred thirty".