103402140 has 24 divisors (see below), whose sum is σ = 289526160. Its totient is φ = 27573888.

The previous prime is 103402133. The next prime is 103402141. The reversal of 103402140 is 41204301.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103402141) 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, 861625 + ... + 861744.

It is an arithmetic number, because the mean of its divisors is an integer number (12063590).

Almost surely, 2^103402140 is an apocalyptic number.

103402140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103402140 is an abundant number, since it is smaller than the sum of its proper divisors (186124020).

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

103402140 is a wasteful number, since it uses less digits than its factorization.

103402140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1723381 (or 1723379 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 103402140 is about 10168.6842806727. The cubic root of 103402140 is about 469.3640712927.

Adding to 103402140 its reverse (41204301), we get a palindrome (144606441).

The spelling of 103402140 in words is "one hundred three million, four hundred two thousand, one hundred forty".