1042420 has 12 divisors (see below), whose sum is σ = 2189124. Its totient is φ = 416960.

The previous prime is 1042399. The next prime is 1042427. The reversal of 1042420 is 242401.

It can be written as a sum of positive squares in 2 ways, for example, as 574564 + 467856 = 758^2 + 684^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1042420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26041 + ... + 26080.

It is an arithmetic number, because the mean of its divisors is an integer number (182427).

2^1042420 is an apocalyptic number.

1042420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1042420 is an abundant number, since it is smaller than the sum of its proper divisors (1146704).

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

1042420 is a wasteful number, since it uses less digits than its factorization.

1042420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52130 (or 52128 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 1042420 is about 1020.9897159129. The cubic root of 1042420 is about 101.3944643070.

Adding to 1042420 its reverse (242401), we get a palindrome (1284821).

The spelling of 1042420 in words is "one million, forty-two thousand, four hundred twenty".