428029790 has 16 divisors (see below), whose sum is σ = 770705712. Its totient is φ = 171155904.

The previous prime is 428029781. The next prime is 428029813. The reversal of 428029790 is 97920824.

It is a super-2 number, since 2×428029790² = 366419002254888200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40322 + ... + 49818.

It is an arithmetic number, because the mean of its divisors is an integer number (48169107).

Almost surely, 2^428029790 is an apocalyptic number.

428029790 is a deficient number, since it is larger than the sum of its proper divisors (342675922).

428029790 is a wasteful number, since it uses less digits than its factorization.

428029790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14011.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 428029790 is about 20688.8808300497. The cubic root of 428029790 is about 753.6296884410.

The spelling of 428029790 in words is "four hundred twenty-eight million, twenty-nine thousand, seven hundred ninety".