40854520 has 64 divisors (see below), whose sum is σ = 107075520. Its totient is φ = 13737984.

The previous prime is 40854511. The next prime is 40854521. The reversal of 40854520 is 2545804.

40854520 = T₄₀₄₀ + T₄₀₄₁ + ... + T₄₀₄₄.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40854521) 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, 13464 + ... + 16216.

It is an arithmetic number, because the mean of its divisors is an integer number (1673055).

Almost surely, 2^40854520 is an apocalyptic number.

40854520 is a gapful number since it is divisible by the number (40) 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 40854520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53537760).

40854520 is an abundant number, since it is smaller than the sum of its proper divisors (66221000).

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

40854520 is a wasteful number, since it uses less digits than its factorization.

40854520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2824 (or 2820 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 40854520 is about 6391.7540628532. The cubic root of 40854520 is about 344.4133979031.

The spelling of 40854520 in words is "forty million, eight hundred fifty-four thousand, five hundred twenty".