1970028 has 96 divisors (see below), whose sum is σ = 5745600. Its totient is φ = 580608.

The previous prime is 1969997. The next prime is 1970029. The reversal of 1970028 is 8200791.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1969983 and 1970010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1970029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53226 + ... + 53262.

It is an arithmetic number, because the mean of its divisors is an integer number (59850).

2^1970028 is an apocalyptic number.

1970028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1970028 is the 888-th heptagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1970028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2872800).

1970028 is an abundant number, since it is smaller than the sum of its proper divisors (3775572).

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

1970028 is a wasteful number, since it uses less digits than its factorization.

1970028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 1970028 is about 1403.5768593134. The cubic root of 1970028 is about 125.3595620626.

The spelling of 1970028 in words is "one million, nine hundred seventy thousand, twenty-eight".