428610429 has 12 divisors (see below), whose sum is σ = 666727516. Its totient is φ = 263760192.

The previous prime is 428610389. The next prime is 428610487. The reversal of 428610429 is 924016824.

It can be written as a sum of positive squares in 2 ways, for example, as 171007929 + 257602500 = 13077^2 + 16050^2 .

It is not a de Polignac number, because 428610429 - 2⁹ = 428609917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 428610393 and 428610402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428610029) 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, 1831552 + ... + 1831785.

Almost surely, 2^428610429 is an apocalyptic number.

It is an amenable number.

428610429 is a deficient number, since it is larger than the sum of its proper divisors (238117087).

428610429 is a wasteful number, since it uses less digits than its factorization.

428610429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3663356 (or 3663353 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 428610429 is about 20702.9087086815. The cubic root of 428610429 is about 753.9703104258.

The spelling of 428610429 in words is "four hundred twenty-eight million, six hundred ten thousand, four hundred twenty-nine".