102020402 has 16 divisors (see below), whose sum is σ = 167572800. Its totient is φ = 46197840.

The previous prime is 102020377. The next prime is 102020407. The reversal of 102020402 is 204020201.

It is a Harshad number since it is a multiple of its sum of digits (11).

It is not an unprimeable number, because it can be changed into a prime (102020407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2702 + ... + 14537.

It is an arithmetic number, because the mean of its divisors is an integer number (10473300).

Almost surely, 2^102020402 is an apocalyptic number.

102020402 is a deficient number, since it is larger than the sum of its proper divisors (65552398).

102020402 is a wasteful number, since it uses less digits than its factorization.

102020402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17521.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 102020402 is about 10100.5149373683. The cubic root of 102020402 is about 467.2640226708.

Adding to 102020402 its reverse (204020201), we get a palindrome (306040603).

The spelling of 102020402 in words is "one hundred two million, twenty thousand, four hundred two".