4038738 has 24 divisors (see below), whose sum is σ = 8880144. Its totient is φ = 1223640.

The previous prime is 4038737. The next prime is 4038739. The reversal of 4038738 is 8378304.

It is an interprime number because it is at equal distance from previous prime (4038737) and next prime (4038739).

It is a super-2 number, since 2×4038738² = 32622809265288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 4038699 and 4038708.

It is not an unprimeable number, because it can be changed into a prime (4038737) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2056 + ... + 3507.

It is an arithmetic number, because the mean of its divisors is an integer number (370006).

Almost surely, 2^4038738 is an apocalyptic number.

4038738 is an abundant number, since it is smaller than the sum of its proper divisors (4841406).

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

4038738 is a wasteful number, since it uses less digits than its factorization.

4038738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5590 (or 5579 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 4038738 is about 2009.6611654704. The cubic root of 4038738 is about 159.2508993161.

The spelling of 4038738 in words is "four million, thirty-eight thousand, seven hundred thirty-eight".