40355808 has 48 divisors (see below), whose sum is σ = 108528336. Its totient is φ = 13122560.

The previous prime is 40355779. The next prime is 40355827. The reversal of 40355808 is 80855304.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1191 + ... + 9062.

It is an arithmetic number, because the mean of its divisors is an integer number (2261007).

Almost surely, 2^40355808 is an apocalyptic number.

40355808 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 40355808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54264168).

40355808 is an abundant number, since it is smaller than the sum of its proper divisors (68172528).

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

40355808 is a wasteful number, since it uses less digits than its factorization.

40355808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10307 (or 10299 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 40355808 is about 6352.6221357798. The cubic root of 40355808 is about 343.0062359504.

The spelling of 40355808 in words is "forty million, three hundred fifty-five thousand, eight hundred eight".