1522864 has 20 divisors (see below), whose sum is σ = 3372304. Its totient is φ = 652608.

The previous prime is 1522841. The next prime is 1522897. The reversal of 1522864 is 4682251.

It is a super-2 number, since 2×1522864² = 4638229524992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6687 + ... + 6910.

2^1522864 is an apocalyptic number.

1522864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1522864 is an abundant number, since it is smaller than the sum of its proper divisors (1849440).

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

1522864 is a wasteful number, since it uses less digits than its factorization.

1522864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13612 (or 13606 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 1522864 is about 1234.0437593538. The cubic root of 1522864 is about 115.0501104867.

The spelling of 1522864 in words is "one million, five hundred twenty-two thousand, eight hundred sixty-four".