1431983428 has 6 divisors (see below), whose sum is σ = 2505971006. Its totient is φ = 715991712.

The previous prime is 1431983411. The next prime is 1431983437. The reversal of 1431983428 is 8243891341.

It can be written as a sum of positive squares in only one way, i.e., 1196606464 + 235376964 = 34592^2 + 15342^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 178997925 + ... + 178997932.

Almost surely, 2^1431983428 is an apocalyptic number.

It is an amenable number.

1431983428 is a deficient number, since it is larger than the sum of its proper divisors (1073987578).

1431983428 is a wasteful number, since it uses less digits than its factorization.

1431983428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357995861 (or 357995859 counting only the distinct ones).

The product of its digits is 165888, while the sum is 43.

The square root of 1431983428 is about 37841.5568918616. The cubic root of 1431983428 is about 1127.1438108708.

The spelling of 1431983428 in words is "one billion, four hundred thirty-one million, nine hundred eighty-three thousand, four hundred twenty-eight".