1802070 has 24 divisors (see below), whose sum is σ = 4685616. Its totient is φ = 480528.

The previous prime is 1802057. The next prime is 1802077. The reversal of 1802070 is 702081.

1802070 = T₁₂₆ + T₁₂₇ + ... + T₂₃₃.

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

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1802077) 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, 9922 + ... + 10101.

It is an arithmetic number, because the mean of its divisors is an integer number (195234).

2^1802070 is an apocalyptic number.

1802070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1802070 is an abundant number, since it is smaller than the sum of its proper divisors (2883546).

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

1802070 is a wasteful number, since it uses less digits than its factorization.

1802070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20036 (or 20033 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 1802070 is about 1342.4120082896. The cubic root of 1802070 is about 121.6906522633.

The spelling of 1802070 in words is "one million, eight hundred two thousand, seventy".