1042380 has 36 divisors (see below), whose sum is σ = 3162432. Its totient is φ = 277920.

The previous prime is 1042373. The next prime is 1042381. The reversal of 1042380 is 832401.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (1042381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2716 + ... + 3075.

2^1042380 is an apocalyptic number.

1042380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1042380 is an abundant number, since it is smaller than the sum of its proper divisors (2120052).

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

1042380 is a wasteful number, since it uses less digits than its factorization.

1042380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5806 (or 5801 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1042380 is about 1020.9701268891. The cubic root of 1042380 is about 101.3931673792.

Adding to 1042380 its reverse (832401), we get a palindrome (1874781).

The spelling of 1042380 in words is "one million, forty-two thousand, three hundred eighty".