1970920 has 32 divisors (see below), whose sum is σ = 5068800. Its totient is φ = 675648.

The previous prime is 1970873. The next prime is 1970921. The reversal of 1970920 is 290791.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (1970921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3240 + ... + 3799.

It is an arithmetic number, because the mean of its divisors is an integer number (158400).

2^1970920 is an apocalyptic number.

1970920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1970920 is an abundant number, since it is smaller than the sum of its proper divisors (3097880).

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

1970920 is a wasteful number, since it uses less digits than its factorization.

1970920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7057 (or 7053 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 1970920 is about 1403.8945829371. The cubic root of 1970920 is about 125.3784795360.

It can be divided in two parts, 1 and 970920, that added together give a triangular number (970921 = T₁₃₉₃).

The spelling of 1970920 in words is "one million, nine hundred seventy thousand, nine hundred twenty".