4040430 has 16 divisors (see below), whose sum is σ = 9697104. Its totient is φ = 1077440.

The previous prime is 4040429. The next prime is 4040431. The reversal of 4040430 is 340404.

It is an interprime number because it is at equal distance from previous prime (4040429) and next prime (4040431).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4040431) 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, 67311 + ... + 67370.

It is an arithmetic number, because the mean of its divisors is an integer number (606069).

Almost surely, 2^4040430 is an apocalyptic number.

4040430 is an abundant number, since it is smaller than the sum of its proper divisors (5656674).

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

4040430 is a wasteful number, since it uses less digits than its factorization.

4040430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134691.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 4040430 is about 2010.0820878760. The cubic root of 4040430 is about 159.2731352144.

Adding to 4040430 its reverse (340404), we get a palindrome (4380834).

It can be divided in two parts, 40 and 40430, that added together give a triangular number (40470 = T₂₈₄).

The spelling of 4040430 in words is "four million, forty thousand, four hundred thirty".