405040848 has 20 divisors (see below), whose sum is σ = 1046355648. Its totient is φ = 135013600.

The previous prime is 405040847. The next prime is 405040859. The reversal of 405040848 is 848040504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405040847) 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, 4219128 + ... + 4219223.

Almost surely, 2^405040848 is an apocalyptic number.

405040848 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

405040848 is an abundant number, since it is smaller than the sum of its proper divisors (641314800).

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

405040848 is a wasteful number, since it uses less digits than its factorization.

405040848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8438362 (or 8438356 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 33.

The square root of 405040848 is about 20125.6266486289. The cubic root of 405040848 is about 739.8884954952. Note that the first 3 decimals are identical.

The spelling of 405040848 in words is "four hundred five million, forty thousand, eight hundred forty-eight".