40990800 has 60 divisors (see below), whose sum is σ = 131311040. Its totient is φ = 10930560.

The previous prime is 40990777. The next prime is 40990823. The reversal of 40990800 is 809904.

It is an interprime number because it is at equal distance from previous prime (40990777) and next prime (40990823).

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (30).

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 11 ways as a sum of consecutive naturals, for example, 15880 + ... + 18279.

Almost surely, 2^40990800 is an apocalyptic number.

40990800 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40990800 is an abundant number, since it is smaller than the sum of its proper divisors (90320240).

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

40990800 is a wasteful number, since it uses less digits than its factorization.

40990800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34180 (or 34169 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 40990800 is about 6402.4057978232. The cubic root of 40990800 is about 344.7959305653.

The spelling of 40990800 in words is "forty million, nine hundred ninety thousand, eight hundred".