1357422 has 32 divisors (see below), whose sum is σ = 3003264. Its totient is φ = 405600.

The previous prime is 1357361. The next prime is 1357423. The reversal of 1357422 is 2247531.

It is an Ulam number.

It is a d-powerful number, because it can be written as 1 + 3¹² + 5 + 7⁷ + 4⁴ + 2⁷ + 2¹¹ .

It is a plaindrome in base 12.

It is a zygodrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 1357392 and 1357401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1357423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8568 + ... + 8724.

It is an arithmetic number, because the mean of its divisors is an integer number (93852).

2^1357422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1357422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1501632).

1357422 is an abundant number, since it is smaller than the sum of its proper divisors (1645842).

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

1357422 is a wasteful number, since it uses less digits than its factorization.

1357422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304.

The product of its digits is 1680, while the sum is 24.

The square root of 1357422 is about 1165.0845462884. The cubic root of 1357422 is about 110.7231147808.

It can be divided in two parts, 135 and 7422, that added together give a palindrome (7557).

The spelling of 1357422 in words is "one million, three hundred fifty-seven thousand, four hundred twenty-two".