1421574 has 64 divisors (see below), whose sum is σ = 3773952. Its totient is φ = 345600.

The previous prime is 1421569. The next prime is 1421603. The reversal of 1421574 is 4751241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7764 + ... + 7944.

It is an arithmetic number, because the mean of its divisors is an integer number (58968).

2^1421574 is an apocalyptic number.

1421574 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1421574, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1886976).

1421574 is an abundant number, since it is smaller than the sum of its proper divisors (2352378).

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

1421574 is a wasteful number, since it uses less digits than its factorization.

1421574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221.

The product of its digits is 1120, while the sum is 24.

The square root of 1421574 is about 1192.2977815965. The cubic root of 1421574 is about 112.4406007419.

The spelling of 1421574 in words is "one million, four hundred twenty-one thousand, five hundred seventy-four".