406278768 has 40 divisors (see below), whose sum is σ = 1199490688. Its totient is φ = 116079552.

The previous prime is 406278737. The next prime is 406278773. The reversal of 406278768 is 867872604.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 604246 + ... + 604917.

Almost surely, 2^406278768 is an apocalyptic number.

406278768 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

406278768 is an abundant number, since it is smaller than the sum of its proper divisors (793211920).

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

406278768 is a wasteful number, since it uses less digits than its factorization.

406278768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209181 (or 1209175 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 48.

The square root of 406278768 is about 20156.3580043618. The cubic root of 406278768 is about 740.6414987583.

The spelling of 406278768 in words is "four hundred six million, two hundred seventy-eight thousand, seven hundred sixty-eight".