405107228 has 12 divisors (see below), whose sum is σ = 728098392. Its totient is φ = 197079120.

The previous prime is 405107221. The next prime is 405107231. The reversal of 405107228 is 822701504.

It is a super-2 number, since 2×405107228² = 328223732355687968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 405107228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405107221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1368458 + ... + 1368753.

It is an arithmetic number, because the mean of its divisors is an integer number (60674866).

Almost surely, 2^405107228 is an apocalyptic number.

It is an amenable number.

405107228 is a deficient number, since it is larger than the sum of its proper divisors (322991164).

405107228 is a wasteful number, since it uses less digits than its factorization.

405107228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2737252 (or 2737250 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 405107228 is about 20127.2757222631. The cubic root of 405107228 is about 739.9289120901.

The spelling of 405107228 in words is "four hundred five million, one hundred seven thousand, two hundred twenty-eight".