1020431332 has 24 divisors (see below), whose sum is σ = 1796847416. Its totient is φ = 507057408.

The previous prime is 1020431311. The next prime is 1020431333. The reversal of 1020431332 is 2331340201.

It can be written as a sum of positive squares in 4 ways, for example, as 18455616 + 1001975716 = 4296^2 + 31654^2 .

It is not an unprimeable number, because it can be changed into a prime (1020431333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 496018 + ... + 498070.

Almost surely, 2^1020431332 is an apocalyptic number.

It is an amenable number.

1020431332 is a deficient number, since it is larger than the sum of its proper divisors (776416084).

1020431332 is a wasteful number, since it uses less digits than its factorization.

1020431332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2767 (or 2765 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1020431332 is about 31944.1908959986. The cubic root of 1020431332 is about 1006.7645812590.

Adding to 1020431332 its reverse (2331340201), we get a palindrome (3351771533).

The spelling of 1020431332 in words is "one billion, twenty million, four hundred thirty-one thousand, three hundred thirty-two".