103405040 has 20 divisors (see below), whose sum is σ = 240416904. Its totient is φ = 41361984.

The previous prime is 103405037. The next prime is 103405061. The reversal of 103405040 is 40504301.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 646202 + ... + 646361.

Almost surely, 2^103405040 is an apocalyptic number.

103405040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103405040 is an abundant number, since it is smaller than the sum of its proper divisors (137011864).

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

103405040 is a wasteful number, since it uses less digits than its factorization.

103405040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292576 (or 1292570 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 103405040 is about 10168.8268743253. The cubic root of 103405040 is about 469.3684591551.

Adding to 103405040 its reverse (40504301), we get a palindrome (143909341).

The spelling of 103405040 in words is "one hundred three million, four hundred five thousand, forty".