1021344402 has 24 divisors (see below), whose sum is σ = 2211907824. Its totient is φ = 314259504.

The previous prime is 1021344367. The next prime is 1021344403. The reversal of 1021344402 is 2044431201.

1021344402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1021344403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 502608 + ... + 504635.

It is an arithmetic number, because the mean of its divisors is an integer number (92162826).

Almost surely, 2^1021344402 is an apocalyptic number.

1021344402 is an abundant number, since it is smaller than the sum of its proper divisors (1190563422).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1021344402 is a wasteful number, since it uses less digits than its factorization.

1021344402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007274 (or 1007261 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1021344402 is about 31958.4793442992. The cubic root of 1021344402 is about 1007.0647721249.

Adding to 1021344402 its reverse (2044431201), we get a palindrome (3065775603).

It can be divided in two parts, 10213 and 44402, that added together give a triangular number (54615 = T₃₃₀).

The spelling of 1021344402 in words is "one billion, twenty-one million, three hundred forty-four thousand, four hundred two".