1641523432 has 32 divisors (see below), whose sum is σ = 3241180800. Its totient is φ = 777864384.

The previous prime is 1641523427. The next prime is 1641523459. The reversal of 1641523432 is 2343251461.

It is a junction number, because it is equal to n+sod(n) for n = 1641523394 and 1641523403.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20868 + ... + 60979.

It is an arithmetic number, because the mean of its divisors is an integer number (101286900).

Almost surely, 2^1641523432 is an apocalyptic number.

It is an amenable number.

1641523432 is a deficient number, since it is larger than the sum of its proper divisors (1599657368).

1641523432 is a wasteful number, since it uses less digits than its factorization.

1641523432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81985 (or 81981 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

The square root of 1641523432 is about 40515.7183325188. The cubic root of 1641523432 is about 1179.6387460647.

Adding to 1641523432 its reverse (2343251461), we get a palindrome (3984774893).

The spelling of 1641523432 in words is "one billion, six hundred forty-one million, five hundred twenty-three thousand, four hundred thirty-two".