103400440 has 64 divisors (see below), whose sum is σ = 273339360. Its totient is φ = 34705920.

The previous prime is 103400431. The next prime is 103400491. The reversal of 103400440 is 44004301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3319 + ... + 14758.

Almost surely, 2^103400440 is an apocalyptic number.

103400440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103400440 is an abundant number, since it is smaller than the sum of its proper divisors (169938920).

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

103400440 is a wasteful number, since it uses less digits than its factorization.

103400440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18112 (or 18108 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 103400440 is about 10168.6006903605. The cubic root of 103400440 is about 469.3614990594.

Adding to 103400440 its reverse (44004301), we get a palindrome (147404741).

The spelling of 103400440 in words is "one hundred three million, four hundred thousand, four hundred forty".