1970438 has 4 divisors (see below), whose sum is σ = 2955660. Its totient is φ = 985218.

The previous prime is 1970431. The next prime is 1970459. The reversal of 1970438 is 8340791.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8340791 = 19 ⋅438989.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1970431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492608 + ... + 492611.

It is an arithmetic number, because the mean of its divisors is an integer number (738915).

2^1970438 is an apocalyptic number.

1970438 is a deficient number, since it is larger than the sum of its proper divisors (985222).

1970438 is an equidigital number, since it uses as much as digits as its factorization.

1970438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985221.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 1970438 is about 1403.7229071295. The cubic root of 1970438 is about 125.3682580228.

The spelling of 1970438 in words is "one million, nine hundred seventy thousand, four hundred thirty-eight".