40725520 has 40 divisors (see below), whose sum is σ = 103296960. Its totient is φ = 14808960.

The previous prime is 40725511. The next prime is 40725521. The reversal of 40725520 is 2552704.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (40725521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22260 + ... + 24019.

It is an arithmetic number, because the mean of its divisors is an integer number (2582424).

Almost surely, 2^40725520 is an apocalyptic number.

40725520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40725520 is an abundant number, since it is smaller than the sum of its proper divisors (62571440).

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

40725520 is a wasteful number, since it uses less digits than its factorization.

40725520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46303 (or 46297 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 40725520 is about 6381.6549577676. The cubic root of 40725520 is about 344.0505153867.

The spelling of 40725520 in words is "forty million, seven hundred twenty-five thousand, five hundred twenty".