1042620 has 24 divisors (see below), whose sum is σ = 2919504. Its totient is φ = 278016.

The previous prime is 1042619. The next prime is 1042631. The reversal of 1042620 is 262401.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1042620.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8629 + ... + 8748.

It is an arithmetic number, because the mean of its divisors is an integer number (121646).

2^1042620 is an apocalyptic number.

1042620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1042620 is an abundant number, since it is smaller than the sum of its proper divisors (1876884).

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

1042620 is a wasteful number, since it uses less digits than its factorization.

1042620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17389 (or 17387 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1042620 is about 1021.0876553950. The cubic root of 1042620 is about 101.4009484484.

The spelling of 1042620 in words is "one million, forty-two thousand, six hundred twenty".