1406506406 has 16 divisors (see below), whose sum is σ = 2151366048. Its totient is φ = 689520000.

The previous prime is 1406506391. The next prime is 1406506447. The reversal of 1406506406 is 6046056041.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 12995 + ... + 54606.

It is an arithmetic number, because the mean of its divisors is an integer number (134460378).

Almost surely, 2^1406506406 is an apocalyptic number.

1406506406 is a deficient number, since it is larger than the sum of its proper divisors (744859642).

1406506406 is a wasteful number, since it uses less digits than its factorization.

1406506406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67807.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 1406506406 is about 37503.4185908432. The cubic root of 1406506406 is about 1120.4192748903.

The spelling of 1406506406 in words is "one billion, four hundred six million, five hundred six thousand, four hundred six".