102020370 has 32 divisors (see below), whose sum is σ = 246786048. Its totient is φ = 26990208.

The previous prime is 102020339. The next prime is 102020371. The reversal of 102020370 is 73020201.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (102020371) 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 15 ways as a sum of consecutive naturals, for example, 9579 + ... + 17198.

It is an arithmetic number, because the mean of its divisors is an integer number (7712064).

Almost surely, 2^102020370 is an apocalyptic number.

102020370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102020370 is an abundant number, since it is smaller than the sum of its proper divisors (144765678).

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

102020370 is a wasteful number, since it uses less digits than its factorization.

102020370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26914.

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 102020370 is about 10100.5133532905. The cubic root of 102020370 is about 467.2639738163.

Adding to 102020370 its reverse (73020201), we get a palindrome (175040571).

The spelling of 102020370 in words is "one hundred two million, twenty thousand, three hundred seventy".