408750081 has 8 divisors (see below), whose sum is σ = 553934784. Its totient is φ = 268032720.

The previous prime is 408750079. The next prime is 408750107. The reversal of 408750081 is 180057804.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 408750081 - 2¹ = 408750079 is a prime.

It is a super-2 number, since 2×408750081² = 334153257435013122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (408750011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1116621 + ... + 1116986.

It is an arithmetic number, because the mean of its divisors is an integer number (69241848).

Almost surely, 2^408750081 is an apocalyptic number.

It is an amenable number.

408750081 is a deficient number, since it is larger than the sum of its proper divisors (145184703).

408750081 is a wasteful number, since it uses less digits than its factorization.

408750081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2233671.

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 408750081 is about 20217.5686223641. The cubic root of 408750081 is about 742.1401891210.

The spelling of 408750081 in words is "four hundred eight million, seven hundred fifty thousand, eighty-one".