4026429 has 20 divisors (see below), whose sum is σ = 6563040. Its totient is φ = 2439720.

The previous prime is 4026409. The next prime is 4026437. The reversal of 4026429 is 9246204.

It is not a de Polignac number, because 4026429 - 2⁵ = 4026397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

4026429 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4026409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1369 + ... + 3150.

It is an arithmetic number, because the mean of its divisors is an integer number (328152).

Almost surely, 2^4026429 is an apocalyptic number.

It is an amenable number.

4026429 is a deficient number, since it is larger than the sum of its proper divisors (2536611).

4026429 is a wasteful number, since it uses less digits than its factorization.

4026429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4542 (or 4533 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 4026429 is about 2006.5963719692. The cubic root of 4026429 is about 159.0889498732.

The spelling of 4026429 in words is "four million, twenty-six thousand, four hundred twenty-nine".