405874236 has 48 divisors (see below), whose sum is σ = 967938048. Its totient is φ = 132331200.

The previous prime is 405874229. The next prime is 405874247. The reversal of 405874236 is 632478504.

It is a happy number.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 405874194 and 405874203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138361 + ... + 141263.

It is an arithmetic number, because the mean of its divisors is an integer number (20165376).

Almost surely, 2^405874236 is an apocalyptic number.

It is an amenable number.

405874236 is an abundant number, since it is smaller than the sum of its proper divisors (562063812).

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

405874236 is a wasteful number, since it uses less digits than its factorization.

405874236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3162 (or 3160 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 39.

The square root of 405874236 is about 20146.3206566360. The cubic root of 405874236 is about 740.3955980721.

The spelling of 405874236 in words is "four hundred five million, eight hundred seventy-four thousand, two hundred thirty-six".