406263942 has 24 divisors (see below), whose sum is σ = 1005987216. Its totient is φ = 116075376.

The previous prime is 406263941. The next prime is 406263953. The reversal of 406263942 is 249362604.

It is a junction number, because it is equal to n+sod(n) for n = 406263897 and 406263906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406263941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1612033 + ... + 1612284.

It is an arithmetic number, because the mean of its divisors is an integer number (41916134).

Almost surely, 2^406263942 is an apocalyptic number.

406263942 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

406263942 is an abundant number, since it is smaller than the sum of its proper divisors (599723274).

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

406263942 is a wasteful number, since it uses less digits than its factorization.

406263942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3224332 (or 3224329 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 406263942 is about 20155.9902262330. The cubic root of 406263942 is about 740.6324894398.

The spelling of 406263942 in words is "four hundred six million, two hundred sixty-three thousand, nine hundred forty-two".