1606430140 has 48 divisors (see below), whose sum is σ = 3901911552. Its totient is φ = 544136256.

The previous prime is 1606430131. The next prime is 1606430141. The reversal of 1606430140 is 410346061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1606430141) 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 15 ways as a sum of consecutive naturals, for example, 57504 + ... + 80743.

It is an arithmetic number, because the mean of its divisors is an integer number (81289824).

Almost surely, 2^1606430140 is an apocalyptic number.

1606430140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1606430140 is an abundant number, since it is smaller than the sum of its proper divisors (2295481412).

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

1606430140 is a wasteful number, since it uses less digits than its factorization.

1606430140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138346 (or 138344 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 1606430140 is about 40080.2961565905. The cubic root of 1606430140 is about 1171.1718213118.

The spelling of 1606430140 in words is "one billion, six hundred six million, four hundred thirty thousand, one hundred forty".