427738406 has 16 divisors (see below), whose sum is σ = 673622784. Its totient is φ = 203311944.

The previous prime is 427738397. The next prime is 427738427. The reversal of 427738406 is 604837724.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21026 + ... + 36021.

It is an arithmetic number, because the mean of its divisors is an integer number (42101424).

Almost surely, 2^427738406 is an apocalyptic number.

427738406 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

427738406 is a deficient number, since it is larger than the sum of its proper divisors (245884378).

427738406 is a wasteful number, since it uses less digits than its factorization.

427738406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57235.

The product of its (nonzero) digits is 225792, while the sum is 41.

The square root of 427738406 is about 20681.8375876033. The cubic root of 427738406 is about 753.4586368869.

The spelling of 427738406 in words is "four hundred twenty-seven million, seven hundred thirty-eight thousand, four hundred six".