1264420 has 24 divisors (see below), whose sum is σ = 2677248. Its totient is φ = 501600.

The previous prime is 1264411. The next prime is 1264447. The reversal of 1264420 is 244621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3655 + ... + 3985.

It is an arithmetic number, because the mean of its divisors is an integer number (111552).

2^1264420 is an apocalyptic number.

1264420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1264420 is an abundant number, since it is smaller than the sum of its proper divisors (1412828).

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

1264420 is a wasteful number, since it uses less digits than its factorization.

1264420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531 (or 529 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1264420 is about 1124.4643169083. The cubic root of 1264420 is about 108.1343777715.

The spelling of 1264420 in words is "one million, two hundred sixty-four thousand, four hundred twenty".