3998454 has 16 divisors (see below), whose sum is σ = 8019648. Its totient is φ = 1329032.

The previous prime is 3998419. The next prime is 3998459. The reversal of 3998454 is 4548993.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3998459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2089 + ... + 3515.

It is an arithmetic number, because the mean of its divisors is an integer number (501228).

Almost surely, 2^3998454 is an apocalyptic number.

3998454 is an abundant number, since it is smaller than the sum of its proper divisors (4021194).

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

3998454 is a wasteful number, since it uses less digits than its factorization.

3998454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1899.

The product of its digits is 155520, while the sum is 42.

The square root of 3998454 is about 1999.6134626472. The cubic root of 3998454 is about 158.7196515446.

The spelling of 3998454 in words is "three million, nine hundred ninety-eight thousand, four hundred fifty-four".