1021434404 has 24 divisors (see below), whose sum is σ = 1859403000. Its totient is φ = 490371840.

The previous prime is 1021434383. The next prime is 1021434419. The reversal of 1021434404 is 4044341201.

It is a happy number.

1021434404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 504100 + 1020930304 = 710^2 + 31952^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1021434404.

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, 3329 + ... + 45320.

It is an arithmetic number, because the mean of its divisors is an integer number (77475125).

Almost surely, 2^1021434404 is an apocalyptic number.

It is an amenable number.

1021434404 is a deficient number, since it is larger than the sum of its proper divisors (837968596).

1021434404 is a wasteful number, since it uses less digits than its factorization.

1021434404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48863 (or 48861 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1021434404 is about 31959.8874215789. The cubic root of 1021434404 is about 1007.0943524771.

Adding to 1021434404 its reverse (4044341201), we get a palindrome (5065775605).

The spelling of 1021434404 in words is "one billion, twenty-one million, four hundred thirty-four thousand, four hundred four".