428926390 has 8 divisors (see below), whose sum is σ = 772067520. Its totient is φ = 171570552.

The previous prime is 428926373. The next prime is 428926397. The reversal of 428926390 is 93629824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428926397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21446310 + ... + 21446329.

It is an arithmetic number, because the mean of its divisors is an integer number (96508440).

Almost surely, 2^428926390 is an apocalyptic number.

428926390 is a deficient number, since it is larger than the sum of its proper divisors (343141130).

428926390 is a wasteful number, since it uses less digits than its factorization.

428926390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42892646.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 428926390 is about 20710.5381388316. The cubic root of 428926390 is about 754.1555343364.

The spelling of 428926390 in words is "four hundred twenty-eight million, nine hundred twenty-six thousand, three hundred ninety".