408272641 has 8 divisors (see below), whose sum is σ = 466732544. Its totient is φ = 349846560.

The previous prime is 408272639. The next prime is 408272647. The reversal of 408272641 is 146272804.

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 408272641 - 2¹ = 408272639 is a prime.

It is a super-2 number, since 2×408272641² = 333373098778229762, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 408272597 and 408272606.

It is not an unprimeable number, because it can be changed into a prime (408272647) 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, 27781 + ... + 39853.

It is an arithmetic number, because the mean of its divisors is an integer number (58341568).

Almost surely, 2^408272641 is an apocalyptic number.

It is an amenable number.

408272641 is a deficient number, since it is larger than the sum of its proper divisors (58459903).

408272641 is a wasteful number, since it uses less digits than its factorization.

408272641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16911.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 408272641 is about 20205.7576200448. The cubic root of 408272641 is about 741.8511245841.

The spelling of 408272641 in words is "four hundred eight million, two hundred seventy-two thousand, six hundred forty-one".