1254780 has 36 divisors (see below), whose sum is σ = 3806712. Its totient is φ = 334560.

The previous prime is 1254767. The next prime is 1254791. The reversal of 1254780 is 874521.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 3306 + ... + 3665.

It is an arithmetic number, because the mean of its divisors is an integer number (105742).

2^1254780 is an apocalyptic number.

1254780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1254780 is an abundant number, since it is smaller than the sum of its proper divisors (2551932).

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

1254780 is a wasteful number, since it uses less digits than its factorization.

1254780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6986 (or 6981 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 1254780 is about 1120.1696300115. The cubic root of 1254780 is about 107.8588691531.

The spelling of 1254780 in words is "one million, two hundred fifty-four thousand, seven hundred eighty".