1438930 has 16 divisors (see below), whose sum is σ = 2660760. Its totient is φ = 559872.

The previous prime is 1438919. The next prime is 1438933. The reversal of 1438930 is 398341.

It can be written as a sum of positive squares in 4 ways, for example, as 1418481 + 20449 = 1191^2 + 143^2 .

It is not an unprimeable number, because it can be changed into a prime (1438933) 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, 1575 + ... + 2314.

2^1438930 is an apocalyptic number.

1438930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1438930 is a deficient number, since it is larger than the sum of its proper divisors (1221830).

1438930 is a wasteful number, since it uses less digits than its factorization.

1438930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3933.

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

The square root of 1438930 is about 1199.5540838161. The cubic root of 1438930 is about 112.8963468532.

The spelling of 1438930 in words is "one million, four hundred thirty-eight thousand, nine hundred thirty".