40722528 has 144 divisors (see below), whose sum is σ = 135825984. Its totient is φ = 10563840.

The previous prime is 40722527. The next prime is 40722541. The reversal of 40722528 is 82522704.

It is a junction number, because it is equal to n+sod(n) for n = 40722495 and 40722504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40722523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51351 + ... + 52137.

It is an arithmetic number, because the mean of its divisors is an integer number (943236).

Almost surely, 2^40722528 is an apocalyptic number.

40722528 is a gapful number since it is divisible by the number (48) 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 40722528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67912992).

40722528 is an abundant number, since it is smaller than the sum of its proper divisors (95103456).

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

40722528 is a wasteful number, since it uses less digits than its factorization.

40722528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825 (or 810 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 40722528 is about 6381.4205315118. The cubic root of 40722528 is about 344.0420896760.

It can be divided in two parts, 407225 and 28, that added together give a triangular number (407253 = T₉₀₂).

The spelling of 40722528 in words is "forty million, seven hundred twenty-two thousand, five hundred twenty-eight".