10431780 has 72 divisors (see below), whose sum is σ = 30256128. Its totient is φ = 2685312.

The previous prime is 10431769. The next prime is 10431781. The reversal of 10431780 is 8713401.

10431780 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 self number, because there is not a number n which added to its sum of digits gives 10431780.

It is not an unprimeable number, because it can be changed into a prime (10431781) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82077 + ... + 82203.

It is an arithmetic number, because the mean of its divisors is an integer number (420224).

Almost surely, 2^10431780 is an apocalyptic number.

10431780 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 10431780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15128064).

10431780 is an abundant number, since it is smaller than the sum of its proper divisors (19824348).

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

10431780 is a wasteful number, since it uses less digits than its factorization.

10431780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 10431780 is about 3229.8266207337. The cubic root of 10431780 is about 218.5006868458.

It can be divided in two parts, 10431 and 780, that added together give a palindrome (11211).

The spelling of 10431780 in words is "ten million, four hundred thirty-one thousand, seven hundred eighty".