102067820 has 24 divisors (see below), whose sum is σ = 221734800. Its totient is φ = 39419072.

The previous prime is 102067811. The next prime is 102067837. The reversal of 102067820 is 28760201.

It is a self number, because there is not a number n which added to its sum of digits gives 102067820.

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, 87410 + ... + 88569.

It is an arithmetic number, because the mean of its divisors is an integer number (9238950).

Almost surely, 2^102067820 is an apocalyptic number.

102067820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102067820 is an abundant number, since it is smaller than the sum of its proper divisors (119666980).

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

102067820 is a wasteful number, since it uses less digits than its factorization.

102067820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176017 (or 176015 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 102067820 is about 10102.8619707487. The cubic root of 102067820 is about 467.3364045772.

The spelling of 102067820 in words is "one hundred two million, sixty-seven thousand, eight hundred twenty".