14238531990 has 48 divisors (see below), whose sum is σ = 37115442000. Its totient is φ = 3787171776.

The previous prime is 14238531949. The next prime is 14238532013. The reversal of 14238531990 is 9913583241.

It is a happy number.

14238531990 is a `hidden beast` number, since 1 + 4 + 23 + 8 + 531 + 9 + 90 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 168340 + ... + 238359.

It is an arithmetic number, because the mean of its divisors is an integer number (773238375).

Almost surely, 2^14238531990 is an apocalyptic number.

14238531990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

14238531990 is an abundant number, since it is smaller than the sum of its proper divisors (22876910010).

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

14238531990 is a wasteful number, since it uses less digits than its factorization.

14238531990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407101 (or 407098 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 14238531990 in words is "fourteen billion, two hundred thirty-eight million, five hundred thirty-one thousand, nine hundred ninety".