438400130 has 16 divisors (see below), whose sum is σ = 901851840. Its totient is φ = 150308592.

The previous prime is 438400069. The next prime is 438400141. The reversal of 438400130 is 31004834.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 438400096 and 438400105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3131360 + ... + 3131499.

It is an arithmetic number, because the mean of its divisors is an integer number (56365740).

Almost surely, 2^438400130 is an apocalyptic number.

438400130 is an abundant number, since it is smaller than the sum of its proper divisors (463451710).

438400130 is a wasteful number, since it uses less digits than its factorization.

438400130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6262873.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 438400130 is about 20938.0068296865. The cubic root of 438400130 is about 759.6675196204.

Adding to 438400130 its reverse (31004834), we get a palindrome (469404964).

The spelling of 438400130 in words is "four hundred thirty-eight million, four hundred thousand, one hundred thirty".