1258772 has 6 divisors (see below), whose sum is σ = 2202858. Its totient is φ = 629384.

The previous prime is 1258771. The next prime is 1258781. The reversal of 1258772 is 2778521.

It can be written as a sum of positive squares in only one way, i.e., 929296 + 329476 = 964^2 + 574^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1258771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157343 + ... + 157350.

It is an arithmetic number, because the mean of its divisors is an integer number (367143).

2^1258772 is an apocalyptic number.

It is an amenable number.

1258772 is a deficient number, since it is larger than the sum of its proper divisors (944086).

1258772 is a wasteful number, since it uses less digits than its factorization.

1258772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314697 (or 314695 counting only the distinct ones).

The product of its digits is 7840, while the sum is 32.

The square root of 1258772 is about 1121.9500880164. The cubic root of 1258772 is about 107.9731300324.

The spelling of 1258772 in words is "one million, two hundred fifty-eight thousand, seven hundred seventy-two".