3721410 has 128 divisors (see below), whose sum is σ = 12441600. Its totient is φ = 768960.

The previous prime is 3721409. The next prime is 3721411. The reversal of 3721410 is 141273.

3721410 = 4² + 5² + ... + 223².

It is an interprime number because it is at equal distance from previous prime (3721409) and next prime (3721411).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3721411) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20701 + ... + 20879.

It is an arithmetic number, because the mean of its divisors is an integer number (97200).

Almost surely, 2^3721410 is an apocalyptic number.

3721410 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 3721410, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6220800).

3721410 is an abundant number, since it is smaller than the sum of its proper divisors (8720190).

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

3721410 is a wasteful number, since it uses less digits than its factorization.

3721410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 3721410 is about 1929.0956430411. The cubic root of 3721410 is about 154.9657919653.

Adding to 3721410 its reverse (141273), we get a palindrome (3862683).

The spelling of 3721410 in words is "three million, seven hundred twenty-one thousand, four hundred ten".