1438505130 has 16 divisors (see below), whose sum is σ = 3452412384. Its totient is φ = 383601360.

The previous prime is 1438505113. The next prime is 1438505161. The reversal of 1438505130 is 315058341.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 47950171 = 1438505130 / (1 + 4 + 3 + 8 + 5 + 0 + 5 + 1 + 3 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23975056 + ... + 23975115.

It is an arithmetic number, because the mean of its divisors is an integer number (215775774).

Almost surely, 2^1438505130 is an apocalyptic number.

1438505130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1438505130 is an abundant number, since it is smaller than the sum of its proper divisors (2013907254).

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

1438505130 is a wasteful number, since it uses less digits than its factorization.

1438505130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47950181.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 1438505130 is about 37927.6301658830. The cubic root of 1438505130 is about 1128.8523419946.

The spelling of 1438505130 in words is "one billion, four hundred thirty-eight million, five hundred five thousand, one hundred thirty".