1970290 has 24 divisors (see below), whose sum is σ = 4126572. Its totient is φ = 675360.

The previous prime is 1970279. The next prime is 1970291. The reversal of 1970290 is 920791.

It can be written as a sum of positive squares in 2 ways, for example, as 1750329 + 219961 = 1323^2 + 469^2 .

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1970291) 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, 1521 + ... + 2500.

2^1970290 is an apocalyptic number.

1970290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1970290 is an abundant number, since it is smaller than the sum of its proper divisors (2156282).

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

1970290 is a wasteful number, since it uses less digits than its factorization.

1970290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4042 (or 4035 counting only the distinct ones).

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

The square root of 1970290 is about 1403.6701891826. The cubic root of 1970290 is about 125.3651191324.

The spelling of 1970290 in words is "one million, nine hundred seventy thousand, two hundred ninety".