428630492 has 6 divisors (see below), whose sum is σ = 750103368. Its totient is φ = 214315244.

The previous prime is 428630491. The next prime is 428630561. The reversal of 428630492 is 294036824.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428630491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53578808 + ... + 53578815.

It is an arithmetic number, because the mean of its divisors is an integer number (125017228).

Almost surely, 2^428630492 is an apocalyptic number.

It is an amenable number.

428630492 is a deficient number, since it is larger than the sum of its proper divisors (321472876).

428630492 is a wasteful number, since it uses less digits than its factorization.

428630492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107157627 (or 107157625 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 428630492 is about 20703.3932484508. The cubic root of 428630492 is about 753.9820745433.

The spelling of 428630492 in words is "four hundred twenty-eight million, six hundred thirty thousand, four hundred ninety-two".