4387438 has 8 divisors (see below), whose sum is σ = 7179480. Its totient is φ = 1994280.

The previous prime is 4387429. The next prime is 4387441. The reversal of 4387438 is 8347834.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×4387438² = 38499224407688, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 4387397 and 4387406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99693 + ... + 99736.

It is an arithmetic number, because the mean of its divisors is an integer number (897435).

Almost surely, 2^4387438 is an apocalyptic number.

4387438 is a deficient number, since it is larger than the sum of its proper divisors (2792042).

4387438 is a wasteful number, since it uses less digits than its factorization.

4387438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199442.

The product of its digits is 64512, while the sum is 37.

The square root of 4387438 is about 2094.6212068057. The cubic root of 4387438 is about 163.7081613289.

The spelling of 4387438 in words is "four million, three hundred eighty-seven thousand, four hundred thirty-eight".