40921088 has 96 divisors (see below), whose sum is σ = 92874600. Its totient is φ = 17891328.

The previous prime is 40921081. The next prime is 40921171. The reversal of 40921088 is 88012904.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 32809984 + 8111104 = 5728^2 + 2848^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (40921081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 772070 + ... + 772122.

Almost surely, 2^40921088 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 40921088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46437300).

40921088 is an abundant number, since it is smaller than the sum of its proper divisors (51953512).

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

40921088 is a wasteful number, since it uses less digits than its factorization.

40921088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 40921088 is about 6396.9592776568. The cubic root of 40921088 is about 344.6003577958.

The spelling of 40921088 in words is "forty million, nine hundred twenty-one thousand, eighty-eight".