1406679894 has 24 divisors (see below), whose sum is σ = 3066511032. Its totient is φ = 466015680.

The previous prime is 1406679893. The next prime is 1406679899. The reversal of 1406679894 is 4989766041.

1406679894 is a `hidden beast` number, since 1 + 406 + 67 + 98 + 94 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1406679894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406679893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 236787 + ... + 242654.

It is an arithmetic number, because the mean of its divisors is an integer number (127771293).

Almost surely, 2^1406679894 is an apocalyptic number.

1406679894 is an abundant number, since it is smaller than the sum of its proper divisors (1659831138).

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

1406679894 is a wasteful number, since it uses less digits than its factorization.

1406679894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479612 (or 479609 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The square root of 1406679894 is about 37505.7314820015. The cubic root of 1406679894 is about 1120.4653396900.

The spelling of 1406679894 in words is "one billion, four hundred six million, six hundred seventy-nine thousand, eight hundred ninety-four".