40541520 has 80 divisors (see below), whose sum is σ = 126366912. Its totient is φ = 10752000.

The previous prime is 40541513. The next prime is 40541539. The reversal of 40541520 is 2514504.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×40541520² = 3287229687820800, which contains 22 as substring.

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, 59904 + ... + 60576.

Almost surely, 2^40541520 is an apocalyptic number.

40541520 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 40541520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63183456).

40541520 is an abundant number, since it is smaller than the sum of its proper divisors (85825392).

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

40541520 is a wasteful number, since it uses less digits than its factorization.

40541520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940 (or 934 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 40541520 is about 6367.2223143220. Note that the first 3 decimals coincide. The cubic root of 40541520 is about 343.5315870938.

The spelling of 40541520 in words is "forty million, five hundred forty-one thousand, five hundred twenty".