1022464 has 20 divisors (see below), whose sum is σ = 2043954. Its totient is φ = 510976.

The previous prime is 1022449. The next prime is 1022467. The reversal of 1022464 is 4642201.

It can be written as a sum of positive squares in only one way, i.e., 1016064 + 6400 = 1008^2 + 80^2 .

It is not an unprimeable number, because it can be changed into a prime (1022467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487 + ... + 1510.

2^1022464 is an apocalyptic number.

It is an amenable number.

1022464 is a deficient number, since it is larger than the sum of its proper divisors (1021490).

1022464 is an frugal number, since it uses more digits than its factorization.

1022464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2015 (or 1999 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1022464 is about 1011.1696197968. The cubic root of 1022464 is about 100.7432619302.

Adding to 1022464 its reverse (4642201), we get a palindrome (5664665).

The spelling of 1022464 in words is "one million, twenty-two thousand, four hundred sixty-four".