10023990 has 16 divisors (see below), whose sum is σ = 24057648. Its totient is φ = 2673056.

The previous prime is 10023953. The next prime is 10023991. The reversal of 10023990 is 9932001.

It is a happy number.

10023990 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 10023990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10023991) 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, 167037 + ... + 167096.

It is an arithmetic number, because the mean of its divisors is an integer number (1503603).

Almost surely, 2^10023990 is an apocalyptic number.

10023990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10023990 is an abundant number, since it is smaller than the sum of its proper divisors (14033658).

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

10023990 is a wasteful number, since it uses less digits than its factorization.

10023990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334143.

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 10023990 is about 3166.0685400035. The cubic root of 10023990 is about 215.6156143783.

Adding to 10023990 its reverse (9932001), we get a palindrome (19955991).

It can be divided in two parts, 100 and 23990, that added together give a triangular number (24090 = T₂₁₉).

The spelling of 10023990 in words is "ten million, twenty-three thousand, nine hundred ninety".