1641314428 has 24 divisors (see below), whose sum is σ = 3132409280. Its totient is φ = 747938880.

The previous prime is 1641314383. The next prime is 1641314443. The reversal of 1641314428 is 8244131461.

It is a junction number, because it is equal to n+sod(n) for n = 1641314393 and 1641314402.

It is a congruent number.

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, 195663 + ... + 203878.

Almost surely, 2^1641314428 is an apocalyptic number.

It is an amenable number.

1641314428 is a deficient number, since it is larger than the sum of its proper divisors (1491094852).

1641314428 is a wasteful number, since it uses less digits than its factorization.

1641314428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399637 (or 399635 counting only the distinct ones).

The product of its digits is 18432, while the sum is 34.

The square root of 1641314428 is about 40513.1389551587. The cubic root of 1641314428 is about 1179.5886788170.

Adding to 1641314428 its reverse (8244131461), we get a palindrome (9885445889).

The spelling of 1641314428 in words is "one billion, six hundred forty-one million, three hundred fourteen thousand, four hundred twenty-eight".