100020628 has 24 divisors (see below), whose sum is σ = 177214464. Its totient is φ = 49392000.

The previous prime is 100020619. The next prime is 100020637. The reversal of 100020628 is 826020001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (100020619) and next prime (100020637).

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, 203463 + ... + 203953.

It is an arithmetic number, because the mean of its divisors is an integer number (7383936).

Almost surely, 2^100020628 is an apocalyptic number.

It is an amenable number.

100020628 is a deficient number, since it is larger than the sum of its proper divisors (77193836).

100020628 is a wasteful number, since it uses less digits than its factorization.

100020628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023 (or 1021 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 100020628 is about 10001.0313468162. The cubic root of 100020628 is about 464.1907967318.

Adding to 100020628 its reverse (826020001), we get a palindrome (926040629).

The spelling of 100020628 in words is "one hundred million, twenty thousand, six hundred twenty-eight".