103620440 has 128 divisors (see below), whose sum is σ = 307929600. Its totient is φ = 30382080.

The previous prime is 103620427. The next prime is 103620467. The reversal of 103620440 is 44026301.

It is a happy number.

It is a super-3 number, since 3×103620440³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51371 + ... + 53349.

It is an arithmetic number, because the mean of its divisors is an integer number (2405700).

Almost surely, 2^103620440 is an apocalyptic number.

103620440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103620440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153964800).

103620440 is an abundant number, since it is smaller than the sum of its proper divisors (204309160).

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

103620440 is a wasteful number, since it uses less digits than its factorization.

103620440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025 (or 2021 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 103620440 is about 10179.4125567245. The cubic root of 103620440 is about 469.6941423339.

Adding to 103620440 its reverse (44026301), we get a palindrome (147646741).

The spelling of 103620440 in words is "one hundred three million, six hundred twenty thousand, four hundred forty".