10240398 has 32 divisors (see below), whose sum is σ = 26008320. Its totient is φ = 2925720.

The previous prime is 10240397. The next prime is 10240423. The reversal of 10240398 is 89304201.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10240397) 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, 13168 + ... + 13923.

It is an arithmetic number, because the mean of its divisors is an integer number (812760).

Almost surely, 2^10240398 is an apocalyptic number.

10240398 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

10240398 is an abundant number, since it is smaller than the sum of its proper divisors (15767922).

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

10240398 is a wasteful number, since it uses less digits than its factorization.

10240398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27109 (or 27103 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 10240398 is about 3200.0621868957. The cubic root of 10240398 is about 217.1562226719.

Adding to 10240398 its reverse (89304201), we get a palindrome (99544599).

The spelling of 10240398 in words is "ten million, two hundred forty thousand, three hundred ninety-eight".