3996420 has 48 divisors (see below), whose sum is σ = 11457600. Its totient is φ = 1040256.

The previous prime is 3996413. The next prime is 3996431. The reversal of 3996420 is 246993.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1806 + ... + 3354.

It is an arithmetic number, because the mean of its divisors is an integer number (238700).

Almost surely, 2^3996420 is an apocalyptic number.

3996420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3996420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5728800).

3996420 is an abundant number, since it is smaller than the sum of its proper divisors (7461180).

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

3996420 is a wasteful number, since it uses less digits than its factorization.

3996420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604 (or 1602 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 3996420 is about 1999.1047996541. The cubic root of 3996420 is about 158.6927335968.

The spelling of 3996420 in words is "three million, nine hundred ninety-six thousand, four hundred twenty".