428023414 has 32 divisors (see below), whose sum is σ = 791239680. Its totient is φ = 169104672.

The previous prime is 428023411. The next prime is 428023423. The reversal of 428023414 is 414320824.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428023411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239167 + ... + 240949.

It is an arithmetic number, because the mean of its divisors is an integer number (24726240).

Almost surely, 2^428023414 is an apocalyptic number.

428023414 is a deficient number, since it is larger than the sum of its proper divisors (363216266).

428023414 is a wasteful number, since it uses less digits than its factorization.

428023414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3124.

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 428023414 is about 20688.7267370421. The cubic root of 428023414 is about 753.6259463598.

The spelling of 428023414 in words is "four hundred twenty-eight million, twenty-three thousand, four hundred fourteen".