4000538454 has 32 divisors (see below), whose sum is σ = 8931441024. Its totient is φ = 1184090880.

The previous prime is 4000538453. The next prime is 4000538467. The reversal of 4000538454 is 4548350004.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000538453) 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, 701979 + ... + 707654.

It is an arithmetic number, because the mean of its divisors is an integer number (279107532).

Almost surely, 2^4000538454 is an apocalyptic number.

4000538454 is an abundant number, since it is smaller than the sum of its proper divisors (4930902570).

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

4000538454 is a wasteful number, since it uses less digits than its factorization.

4000538454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409692.

The product of its (nonzero) digits is 38400, while the sum is 33.

The square root of 4000538454 is about 63249.8099127578. The cubic root of 4000538454 is about 1587.4722773095.

Adding to 4000538454 its reverse (4548350004), we get a palindrome (8548888458).

The spelling of 4000538454 in words is "four billion, five hundred thirty-eight thousand, four hundred fifty-four".