428046938 has 32 divisors (see below), whose sum is σ = 712979712. Its totient is φ = 192709440.

The previous prime is 428046937. The next prime is 428046959. The reversal of 428046938 is 839640824.

It is a super-2 number, since 2×428046938² = 366448362262351688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (428046937) 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, 300095 + ... + 301517.

It is an arithmetic number, because the mean of its divisors is an integer number (22280616).

Almost surely, 2^428046938 is an apocalyptic number.

428046938 is a deficient number, since it is larger than the sum of its proper divisors (284932774).

428046938 is a wasteful number, since it uses less digits than its factorization.

428046938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1571 (or 1549 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 44.

The square root of 428046938 is about 20689.2952514096. The cubic root of 428046938 is about 753.6397524363.

The spelling of 428046938 in words is "four hundred twenty-eight million, forty-six thousand, nine hundred thirty-eight".