2001389454 has 24 divisors (see below), whose sum is σ = 4338013680. Its totient is φ = 666872928.

The previous prime is 2001389399. The next prime is 2001389461. The reversal of 2001389454 is 4549831002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29967 + ... + 70005.

It is an arithmetic number, because the mean of its divisors is an integer number (180750570).

Almost surely, 2^2001389454 is an apocalyptic number.

2001389454 is an abundant number, since it is smaller than the sum of its proper divisors (2336624226).

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

2001389454 is a wasteful number, since it uses less digits than its factorization.

2001389454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42824 (or 42821 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 2001389454 is about 44736.8914208397. The cubic root of 2001389454 is about 1260.2127494119.

The spelling of 2001389454 in words is "two billion, one million, three hundred eighty-nine thousand, four hundred fifty-four".