201924628 has 18 divisors (see below), whose sum is σ = 372947946. Its totient is φ = 95647824.

The previous prime is 201924617. The next prime is 201924629. The reversal of 201924628 is 826429102.

It can be written as a sum of positive squares in only one way, i.e., 158206084 + 43718544 = 12578^2 + 6612^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201924593 and 201924602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201924629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68475 + ... + 71362.

Almost surely, 2^201924628 is an apocalyptic number.

It is an amenable number.

201924628 is a deficient number, since it is larger than the sum of its proper divisors (171023318).

201924628 is a wasteful number, since it uses less digits than its factorization.

201924628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139879 (or 139858 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 201924628 is about 14210.0185784537. The cubic root of 201924628 is about 586.6734444522.

The spelling of 201924628 in words is "two hundred one million, nine hundred twenty-four thousand, six hundred twenty-eight".