3722490 has 64 divisors (see below), whose sum is σ = 10523520. Its totient is φ = 933120.

The previous prime is 3722479. The next prime is 3722491. The reversal of 3722490 is 942273.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3722491) by changing a digit.

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, 4185 + ... + 4995.

It is an arithmetic number, because the mean of its divisors is an integer number (164430).

Almost surely, 2^3722490 is an apocalyptic number.

3722490 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 3722490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5261760).

3722490 is an abundant number, since it is smaller than the sum of its proper divisors (6801030).

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

3722490 is a wasteful number, since it uses less digits than its factorization.

3722490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844 (or 838 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 3722490 is about 1929.3755466472. The cubic root of 3722490 is about 154.9807815228.

The spelling of 3722490 in words is "three million, seven hundred twenty-two thousand, four hundred ninety".