428090516 has 12 divisors (see below), whose sum is σ = 856181088. Its totient is φ = 183467352.

The previous prime is 428090503. The next prime is 428090527. The reversal of 428090516 is 615090824.

428090516 is an admirable number.

It is a super-2 number, since 2×428090516² = 366522979778292512, 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 3 ways as a sum of consecutive naturals, for example, 7644446 + ... + 7644501.

It is an arithmetic number, because the mean of its divisors is an integer number (71348424).

Almost surely, 2^428090516 is an apocalyptic number.

It is an amenable number.

428090516 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

428090516 is a wasteful number, since it uses less digits than its factorization.

428090516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15288958 (or 15288956 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 428090516 is about 20690.3483779273. The cubic root of 428090516 is about 753.6653267334.

The spelling of 428090516 in words is "four hundred twenty-eight million, ninety thousand, five hundred sixteen".