428269750 has 32 divisors (see below), whose sum is σ = 806008320. Its totient is φ = 170392000.

The previous prime is 428269741. The next prime is 428269753. The reversal of 428269750 is 57962824.

It is a junction number, because it is equal to n+sod(n) for n = 428269697 and 428269706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428269753) 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, 43266 + ... + 52234.

It is an arithmetic number, because the mean of its divisors is an integer number (25187760).

Almost surely, 2^428269750 is an apocalyptic number.

428269750 is a deficient number, since it is larger than the sum of its proper divisors (377738570).

428269750 is a wasteful number, since it uses less digits than its factorization.

428269750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9177 (or 9167 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 428269750 is about 20694.6792678698. The cubic root of 428269750 is about 753.7704942142.

The spelling of 428269750 in words is "four hundred twenty-eight million, two hundred sixty-nine thousand, seven hundred fifty".