3840434 has 8 divisors (see below), whose sum is σ = 6203820. Its totient is φ = 1772496.

The previous prime is 3840409. The next prime is 3840449. The reversal of 3840434 is 4340483.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3411409 + 429025 = 1847^2 + 655^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 147709 = 3840434 / (3 + 8 + 4 + 0 + 4 + 3 + 4).

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, 73829 + ... + 73880.

Almost surely, 2^3840434 is an apocalyptic number.

3840434 is a deficient number, since it is larger than the sum of its proper divisors (2363386).

3840434 is a wasteful number, since it uses less digits than its factorization.

3840434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147724.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 3840434 is about 1959.7025284466. The cubic root of 3840434 is about 156.6006049126.

The spelling of 3840434 in words is "three million, eight hundred forty thousand, four hundred thirty-four".