3642522 has 64 divisors (see below), whose sum is σ = 8636544. Its totient is φ = 1013760.

The previous prime is 3642497. The next prime is 3642559. The reversal of 3642522 is 2252463.

It is a junction number, because it is equal to n+sod(n) for n = 3642492 and 3642501.

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, 54333 + ... + 54399.

It is an arithmetic number, because the mean of its divisors is an integer number (134946).

Almost surely, 2^3642522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3642522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4318272).

3642522 is an abundant number, since it is smaller than the sum of its proper divisors (4994022).

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

3642522 is a wasteful number, since it uses less digits than its factorization.

3642522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143.

The product of its digits is 2880, while the sum is 24.

The square root of 3642522 is about 1908.5392319782. The cubic root of 3642522 is about 153.8629522298.

Adding to 3642522 its reverse (2252463), we get a palindrome (5894985).

The spelling of 3642522 in words is "three million, six hundred forty-two thousand, five hundred twenty-two".