1020464 has 40 divisors (see below), whose sum is σ = 2142720. Its totient is φ = 469568.

The previous prime is 1020457. The next prime is 1020491. The reversal of 1020464 is 4640201.

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, 17267 + ... + 17325.

It is an arithmetic number, because the mean of its divisors is an integer number (53568).

2^1020464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1071360).

1020464 is an abundant number, since it is smaller than the sum of its proper divisors (1122256).

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

1020464 is a wasteful number, since it uses less digits than its factorization.

1020464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1020464 is about 1010.1801819478. The cubic root of 1020464 is about 100.6775324636.

Adding to 1020464 its reverse (4640201), we get a palindrome (5660665).

The spelling of 1020464 in words is "one million, twenty thousand, four hundred sixty-four".