102402790 has 16 divisors (see below), whose sum is σ = 210657312. Its totient is φ = 35109504.

The previous prime is 102402787. The next prime is 102402793. The reversal of 102402790 is 97204201.

It is an interprime number because it is at equal distance from previous prime (102402787) and next prime (102402793).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102402793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 731379 + ... + 731518.

It is an arithmetic number, because the mean of its divisors is an integer number (13166082).

Almost surely, 2^102402790 is an apocalyptic number.

102402790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102402790 is an abundant number, since it is smaller than the sum of its proper divisors (108254522).

102402790 is a wasteful number, since it uses less digits than its factorization.

102402790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462911.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 102402790 is about 10119.4263671416. The cubic root of 102402790 is about 467.8470870387.

Adding to 102402790 its reverse (97204201), we get a palindrome (199606991).

The spelling of 102402790 in words is "one hundred two million, four hundred two thousand, seven hundred ninety".