1722474 has 48 divisors (see below), whose sum is σ = 4265352. Its totient is φ = 497664.

The previous prime is 1722463. The next prime is 1722481. The reversal of 1722474 is 4742271.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1071225 + 651249 = 1035^2 + 807^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3762 + ... + 4194.

2^1722474 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1722474, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2132676).

1722474 is an abundant number, since it is smaller than the sum of its proper divisors (2542878).

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

1722474 is a wasteful number, since it uses less digits than its factorization.

1722474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471 (or 468 counting only the distinct ones).

The product of its digits is 3136, while the sum is 27.

The square root of 1722474 is about 1312.4305695922. The cubic root of 1722474 is about 119.8719467350.

The spelling of 1722474 in words is "one million, seven hundred twenty-two thousand, four hundred seventy-four".