1042320 has 80 divisors (see below), whose sum is σ = 3339072. Its totient is φ = 268800.

The previous prime is 1042309. The next prime is 1042331. The reversal of 1042320 is 232401.

It is an interprime number because it is at equal distance from previous prime (1042309) and next prime (1042331).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1042296 and 1042305.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10270 + ... + 10370.

2^1042320 is an apocalyptic number.

1042320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1042320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1669536).

1042320 is an abundant number, since it is smaller than the sum of its proper divisors (2296752).

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

1042320 is a wasteful number, since it uses less digits than its factorization.

1042320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 1042320 is about 1020.9407426487. The cubic root of 1042320 is about 101.3912219253.

Adding to 1042320 its reverse (232401), we get a palindrome (1274721).

The spelling of 1042320 in words is "one million, forty-two thousand, three hundred twenty".