3652722 has 64 divisors (see below), whose sum is σ = 9020160. Its totient is φ = 1089792.

The previous prime is 3652703. The next prime is 3652757. The reversal of 3652722 is 2272563.

3652722 is a `hidden beast` number, since 3 + 652 + 7 + 2 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 21028 + ... + 21200.

It is an arithmetic number, because the mean of its divisors is an integer number (140940).

Almost surely, 2^3652722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3652722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4510080).

3652722 is an abundant number, since it is smaller than the sum of its proper divisors (5367438).

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

3652722 is a wasteful number, since it uses less digits than its factorization.

3652722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 218 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 3652722 is about 1911.2095646475. The cubic root of 3652722 is about 154.0064370166.

The spelling of 3652722 in words is "three million, six hundred fifty-two thousand, seven hundred twenty-two".