101030440 has 32 divisors (see below), whose sum is σ = 259793280. Its totient is φ = 34638912.

The previous prime is 101030417. The next prime is 101030441. The reversal of 101030440 is 44030101.

It is a self number, because there is not a number n which added to its sum of digits gives 101030440.

It is not an unprimeable number, because it can be changed into a prime (101030441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180132 + ... + 180691.

It is an arithmetic number, because the mean of its divisors is an integer number (8118540).

Almost surely, 2^101030440 is an apocalyptic number.

101030440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101030440 is an abundant number, since it is smaller than the sum of its proper divisors (158762840).

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

101030440 is a wasteful number, since it uses less digits than its factorization.

101030440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360841 (or 360837 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 101030440 is about 10051.3899536333. The cubic root of 101030440 is about 465.7477313515.

Adding to 101030440 its reverse (44030101), we get a palindrome (145060541).

The spelling of 101030440 in words is "one hundred one million, thirty thousand, four hundred forty".