428207092 has 12 divisors (see below), whose sum is σ = 773535616. Its totient is φ = 207196920.

The previous prime is 428207081. The next prime is 428207107. The reversal of 428207092 is 290702824.

It is a super-2 number, since 2×428207092² = 366722627278192928, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1726518 + ... + 1726765.

Almost surely, 2^428207092 is an apocalyptic number.

It is an amenable number.

428207092 is a deficient number, since it is larger than the sum of its proper divisors (345328524).

428207092 is a wasteful number, since it uses less digits than its factorization.

428207092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3453318 (or 3453316 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 428207092 is about 20693.1653451085. The cubic root of 428207092 is about 753.7337322940.

The spelling of 428207092 in words is "four hundred twenty-eight million, two hundred seven thousand, ninety-two".