4249420 has 48 divisors (see below), whose sum is σ = 10321920. Its totient is φ = 1439424.

The previous prime is 4249417. The next prime is 4249423. The reversal of 4249420 is 249424.

4249420 = T₅₆ + T₅₇ + ... + T₂₉₄.

It is an interprime number because it is at equal distance from previous prime (4249417) and next prime (4249423).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4249423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17661 + ... + 17899.

It is an arithmetic number, because the mean of its divisors is an integer number (215040).

Almost surely, 2^4249420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4249420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5160960).

4249420 is an abundant number, since it is smaller than the sum of its proper divisors (6072500).

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

4249420 is a wasteful number, since it uses less digits than its factorization.

4249420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382 (or 380 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 4249420 is about 2061.4121373466. The cubic root of 4249420 is about 161.9732211999.

The spelling of 4249420 in words is "four million, two hundred forty-nine thousand, four hundred twenty".