3652290 has 64 divisors (see below), whose sum is σ = 9918720. Its totient is φ = 968112.

The previous prime is 3652279. The next prime is 3652303. The reversal of 3652290 is 922563.

3652290 is a `hidden beast` number, since 3 + 652 + 2 + 9 + 0 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21787 + ... + 21953.

It is an arithmetic number, because the mean of its divisors is an integer number (154980).

Almost surely, 2^3652290 is an apocalyptic number.

3652290 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3652290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4959360).

3652290 is an abundant number, since it is smaller than the sum of its proper divisors (6266430).

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

3652290 is an equidigital number, since it uses as much as digits as its factorization.

3652290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 3652290 is about 1911.0965438721. The cubic root of 3652290 is about 154.0003654346. Note that the first 3 decimals are identical.

It can be divided in two parts, 36 and 52290, that added together give a triangular number (52326 = T₃₂₃).

The spelling of 3652290 in words is "three million, six hundred fifty-two thousand, two hundred ninety".