405024122124 has 60 divisors (see below), whose sum is σ = 1061535274800. Its totient is φ = 134660934432.

The previous prime is 405024122101. The next prime is 405024122221. The reversal of 405024122124 is 421221420504.

It is a happy number.

405024122124 is a `hidden beast` number, since 405 + 0 + 2 + 41 + 2 + 212 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1480744 + ... + 1732815.

It is an arithmetic number, because the mean of its divisors is an integer number (17692254580).

Almost surely, 2^405024122124 is an apocalyptic number.

It is an amenable number.

405024122124 is an abundant number, since it is smaller than the sum of its proper divisors (656511152676).

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

405024122124 is a wasteful number, since it uses less digits than its factorization.

405024122124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3213964 (or 3213953 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

Adding to 405024122124 its reverse (421221420504), we get a palindrome (826245542628).

The spelling of 405024122124 in words is "four hundred five billion, twenty-four million, one hundred twenty-two thousand, one hundred twenty-four".