126667406 has 8 divisors (see below), whose sum is σ = 190531440. Its totient is φ = 63156928.

The previous prime is 126667399. The next prime is 126667423. The reversal of 126667406 is 604766621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 126667406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87491 + ... + 88926.

It is an arithmetic number, because the mean of its divisors is an integer number (23816430).

Almost surely, 2^126667406 is an apocalyptic number.

126667406 is a deficient number, since it is larger than the sum of its proper divisors (63864034).

126667406 is a wasteful number, since it uses less digits than its factorization.

126667406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176778.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 126667406 is about 11254.6615231201. The cubic root of 126667406 is about 502.2133953042.

The spelling of 126667406 in words is "one hundred twenty-six million, six hundred sixty-seven thousand, four hundred six".