1522722 has 8 divisors (see below), whose sum is σ = 3045456. Its totient is φ = 507572.

The previous prime is 1522711. The next prime is 1522727. The reversal of 1522722 is 2272251.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

1522722 is an admirable number.

It is a super-3 number, since 3×1522722³ = 10592125598709333144, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1522727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126888 + ... + 126899.

It is an arithmetic number, because the mean of its divisors is an integer number (380682).

2^1522722 is an apocalyptic number.

1522722 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1522722 is a wasteful number, since it uses less digits than its factorization.

1522722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253792.

The product of its digits is 560, while the sum is 21.

The square root of 1522722 is about 1233.9862235860. The cubic root of 1522722 is about 115.0465344126.

Adding to 1522722 its reverse (2272251), we get a palindrome (3794973).

The spelling of 1522722 in words is "one million, five hundred twenty-two thousand, seven hundred twenty-two".