1025622 has 40 divisors (see below), whose sum is σ = 2480016. Its totient is φ = 314928.

The previous prime is 1025621. The next prime is 1025623. The reversal of 1025622 is 2265201.

1025622 is a `hidden beast` number, since 102 + 562 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (1025621) and next prime (1025623).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1025595 and 1025604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025621) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1863 + ... + 2349.

2^1025622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1025622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1240008).

1025622 is an abundant number, since it is smaller than the sum of its proper divisors (1454394).

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

1025622 is a wasteful number, since it uses less digits than its factorization.

1025622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514 (or 505 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1025622 is about 1012.7299738825. The cubic root of 1025622 is about 100.8468744574.

The spelling of 1025622 in words is "one million, twenty-five thousand, six hundred twenty-two".