1021343404 has 24 divisors (see below), whose sum is σ = 1893427760. Its totient is φ = 480707136.

The previous prime is 1021343399. The next prime is 1021343413. The reversal of 1021343404 is 4043431201.

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, 30867 + ... + 54730.

Almost surely, 2^1021343404 is an apocalyptic number.

It is an amenable number.

1021343404 is a deficient number, since it is larger than the sum of its proper divisors (872084356).

1021343404 is a wasteful number, since it uses less digits than its factorization.

1021343404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85777 (or 85775 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1021343404 is about 31958.4637302859. The cubic root of 1021343404 is about 1007.0644441092.

Adding to 1021343404 its reverse (4043431201), we get a palindrome (5064774605).

The spelling of 1021343404 in words is "one billion, twenty-one million, three hundred forty-three thousand, four hundred four".