40633320 has 192 divisors, whose sum is σ = 152530560. Its totient is φ = 8432640.

The previous prime is 40633319. The next prime is 40633339. The reversal of 40633320 is 2333604.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 666090 + ... + 666150.

It is an arithmetic number, because the mean of its divisors is an integer number (794430).

Almost surely, 2^40633320 is an apocalyptic number.

40633320 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 40633320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76265280).

40633320 is an abundant number, since it is smaller than the sum of its proper divisors (111897240).

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

40633320 is a wasteful number, since it uses less digits than its factorization.

40633320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 40633320 is about 6374.4270330752. The cubic root of 40633320 is about 343.7906830086.

Adding to 40633320 its reverse (2333604), we get a palindrome (42966924).

The spelling of 40633320 in words is "forty million, six hundred thirty-three thousand, three hundred twenty".