1406561530 has 32 divisors (see below), whose sum is σ = 2768447808. Its totient is φ = 510278400.

The previous prime is 1406561491. The next prime is 1406561531. The reversal of 1406561530 is 351656041.

It is a junction number, because it is equal to n+sod(n) for n = 1406561492 and 1406561501.

It is not an unprimeable number, because it can be changed into a prime (1406561531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32865 + ... + 62395.

It is an arithmetic number, because the mean of its divisors is an integer number (86513994).

Almost surely, 2^1406561530 is an apocalyptic number.

1406561530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1406561530 is a deficient number, since it is larger than the sum of its proper divisors (1361886278).

1406561530 is a wasteful number, since it uses less digits than its factorization.

1406561530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29982.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 1406561530 is about 37504.1535033121. The cubic root of 1406561530 is about 1120.4339119098.

The spelling of 1406561530 in words is "one billion, four hundred six million, five hundred sixty-one thousand, five hundred thirty".