1438374 has 32 divisors (see below), whose sum is σ = 3432960. Its totient is φ = 392832.

The previous prime is 1438303. The next prime is 1438379. The reversal of 1438374 is 4738341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1438379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222 + ... + 1710.

It is an arithmetic number, because the mean of its divisors is an integer number (107280).

2^1438374 is an apocalyptic number.

1438374 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1438374, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1716480).

1438374 is an abundant number, since it is smaller than the sum of its proper divisors (1994586).

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

1438374 is a wasteful number, since it uses less digits than its factorization.

1438374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1524.

The product of its digits is 8064, while the sum is 30.

The square root of 1438374 is about 1199.3223086393. The cubic root of 1438374 is about 112.8818039972.

The spelling of 1438374 in words is "one million, four hundred thirty-eight thousand, three hundred seventy-four".