1605406232 has 16 divisors (see below), whose sum is σ = 3025266000. Its totient is φ = 798668640.

The previous prime is 1605406219. The next prime is 1605406261. The reversal of 1605406232 is 2326045061.

It is a junction number, because it is equal to n+sod(n) for n = 1605406195 and 1605406204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 502619 + ... + 505802.

It is an arithmetic number, because the mean of its divisors is an integer number (189079125).

Almost surely, 2^1605406232 is an apocalyptic number.

It is an amenable number.

1605406232 is a deficient number, since it is larger than the sum of its proper divisors (1419859768).

1605406232 is a wasteful number, since it uses less digits than its factorization.

1605406232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008626 (or 1008622 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 1605406232 is about 40067.5209115812. The cubic root of 1605406232 is about 1170.9229408834.

The spelling of 1605406232 in words is "one billion, six hundred five million, four hundred six thousand, two hundred thirty-two".