1021434144 has 48 divisors (see below), whose sum is σ = 2696289120. Its totient is φ = 338570240.

The previous prime is 1021434131. The next prime is 1021434151. The reversal of 1021434144 is 4414341201.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 12537 + ... + 46904.

It is an arithmetic number, because the mean of its divisors is an integer number (56172690).

Almost surely, 2^1021434144 is an apocalyptic number.

It is an amenable number.

1021434144 is an abundant number, since it is smaller than the sum of its proper divisors (1674854976).

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

1021434144 is a wasteful number, since it uses less digits than its factorization.

1021434144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59633 (or 59625 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 1021434144 is about 31959.8833539799. The cubic root of 1021434144 is about 1007.0942670271.

Adding to 1021434144 its reverse (4414341201), we get a palindrome (5435775345).

The spelling of 1021434144 in words is "one billion, twenty-one million, four hundred thirty-four thousand, one hundred forty-four".