103407440 has 20 divisors (see below), whose sum is σ = 240422484. Its totient is φ = 41362944.

The previous prime is 103407433. The next prime is 103407449. The reversal of 103407440 is 44704301.

It can be written as a sum of positive squares in 2 ways, for example, as 63616576 + 39790864 = 7976^2 + 6308^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103407449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 646217 + ... + 646376.

Almost surely, 2^103407440 is an apocalyptic number.

103407440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103407440 is an abundant number, since it is smaller than the sum of its proper divisors (137015044).

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

103407440 is a wasteful number, since it uses less digits than its factorization.

103407440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292606 (or 1292600 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 103407440 is about 10168.9448813532. The cubic root of 103407440 is about 469.3720904274.

The spelling of 103407440 in words is "one hundred three million, four hundred seven thousand, four hundred forty".