1930438 has 16 divisors (see below), whose sum is σ = 3132720. Its totient is φ = 889056.

The previous prime is 1930433. The next prime is 1930447. The reversal of 1930438 is 8340391.

It is a super-4 number, since 4×1930438⁴ (a number of 26 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1930433) 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, 720 + ... + 2092.

It is an arithmetic number, because the mean of its divisors is an integer number (195795).

2^1930438 is an apocalyptic number.

1930438 is a deficient number, since it is larger than the sum of its proper divisors (1202282).

1930438 is a wasteful number, since it uses less digits than its factorization.

1930438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1930438 is about 1389.4020296516. The cubic root of 1930438 is about 124.5141245138.

The spelling of 1930438 in words is "one million, nine hundred thirty thousand, four hundred thirty-eight".