10040220 has 48 divisors (see below), whose sum is σ = 31237920. Its totient is φ = 2677248.

The previous prime is 10040171. The next prime is 10040221. The reversal of 10040220 is 2204001.

10040220 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10040221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8757 + ... + 9836.

It is an arithmetic number, because the mean of its divisors is an integer number (650790).

Almost surely, 2^10040220 is an apocalyptic number.

10040220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10040220 is an abundant number, since it is smaller than the sum of its proper divisors (21197700).

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

10040220 is a wasteful number, since it uses less digits than its factorization.

10040220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18611 (or 18603 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 10040220 is about 3168.6306190530. The cubic root of 10040220 is about 215.7319205083.

Adding to 10040220 its reverse (2204001), we get a palindrome (12244221).

The spelling of 10040220 in words is "ten million, forty thousand, two hundred twenty".