7421622 has 64 divisors (see below), whose sum is σ = 17599680. Its totient is φ = 2064384.

The previous prime is 7421587. The next prime is 7421633. The reversal of 7421622 is 2261247.

It is a super-2 number, since 2×7421622² = 110160946221768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7421592 and 7421601.

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, 38358 + ... + 38550.

It is an arithmetic number, because the mean of its divisors is an integer number (274995).

Almost surely, 2^7421622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7421622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8799840).

7421622 is an abundant number, since it is smaller than the sum of its proper divisors (10178058).

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

7421622 is a wasteful number, since it uses less digits than its factorization.

7421622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257.

The product of its digits is 1344, while the sum is 24.

The square root of 7421622 is about 2724.2654055727. The cubic root of 7421622 is about 195.0591273689.

Adding to 7421622 its reverse (2261247), we get a palindrome (9682869).

The spelling of 7421622 in words is "seven million, four hundred twenty-one thousand, six hundred twenty-two".