50428690 has 16 divisors (see below), whose sum is σ = 97754328. Its totient is φ = 18619776.

The previous prime is 50428687. The next prime is 50428699. The reversal of 50428690 is 9682405.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17698849 + 32729841 = 4207^2 + 5721^2 .

It is a super-2 number, since 2×50428690² = 5086105550232200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (50428699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193827 + ... + 194086.

Almost surely, 2^50428690 is an apocalyptic number.

50428690 is a deficient number, since it is larger than the sum of its proper divisors (47325638).

50428690 is a wasteful number, since it uses less digits than its factorization.

50428690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387933.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 50428690 is about 7101.3160752075. The cubic root of 50428690 is about 369.4530267205.

The spelling of 50428690 in words is "fifty million, four hundred twenty-eight thousand, six hundred ninety".