1406664042 has 32 divisors (see below), whose sum is σ = 3225405312. Its totient is φ = 400632384.

The previous prime is 1406664041. The next prime is 1406664047. The reversal of 1406664042 is 2404666041.

It is a junction number, because it is equal to n+sod(n) for n = 1406663994 and 1406664012.

It is not an unprimeable number, because it can be changed into a prime (1406664041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39513 + ... + 66140.

It is an arithmetic number, because the mean of its divisors is an integer number (100793916).

Almost surely, 2^1406664042 is an apocalyptic number.

1406664042 is an abundant number, since it is smaller than the sum of its proper divisors (1818741270).

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

1406664042 is a wasteful number, since it uses less digits than its factorization.

1406664042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105982.

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 1406664042 is about 37505.5201537054. The cubic root of 1406664042 is about 1120.4611307999.

The spelling of 1406664042 in words is "one billion, four hundred six million, six hundred sixty-four thousand, forty-two".