40553028 has 48 divisors (see below), whose sum is σ = 106344000. Its totient is φ = 13362624.

The previous prime is 40553027. The next prime is 40553039. The reversal of 40553028 is 82035504.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 40552992 and 40553010.

It is not an unprimeable number, because it can be changed into a prime (40553021) 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 15 ways as a sum of consecutive naturals, for example, 7503 + ... + 11721.

It is an arithmetic number, because the mean of its divisors is an integer number (2215500).

Almost surely, 2^40553028 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40553028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53172000).

40553028 is an abundant number, since it is smaller than the sum of its proper divisors (65790972).

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

40553028 is a wasteful number, since it uses less digits than its factorization.

40553028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4321 (or 4313 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 40553028 is about 6368.1259409657. The cubic root of 40553028 is about 343.5640886502.

The spelling of 40553028 in words is "forty million, five hundred fifty-three thousand, twenty-eight".