1021345464 has 16 divisors (see below), whose sum is σ = 2553363720. Its totient is φ = 340448480.

The previous prime is 1021345453. The next prime is 1021345471. The reversal of 1021345464 is 4645431201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21278007 + ... + 21278054.

Almost surely, 2^1021345464 is an apocalyptic number.

It is an amenable number.

1021345464 is an abundant number, since it is smaller than the sum of its proper divisors (1532018256).

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

1021345464 is a wasteful number, since it uses less digits than its factorization.

1021345464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42556070 (or 42556066 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 1021345464 is about 31958.4959596036. The cubic root of 1021345464 is about 1007.0651211754.

Adding to 1021345464 its reverse (4645431201), we get a palindrome (5666776665).

The spelling of 1021345464 in words is "one billion, twenty-one million, three hundred forty-five thousand, four hundred sixty-four".