1438474501 has 4 divisors (see below), whose sum is σ = 1488077100. Its totient is φ = 1388871904.

The previous prime is 1438474481. The next prime is 1438474547. The reversal of 1438474501 is 1054748341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1054748341 = 137 ⋅7698893.

It can be written as a sum of positive squares in 2 ways, for example, as 765850276 + 672624225 = 27674^2 + 25935^2 .

It is a cyclic number.

It is not a de Polignac number, because 1438474501 - 2⁵ = 1438474469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1438474801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24801256 + ... + 24801313.

It is an arithmetic number, because the mean of its divisors is an integer number (372019275).

Almost surely, 2^1438474501 is an apocalyptic number.

It is an amenable number.

1438474501 is a deficient number, since it is larger than the sum of its proper divisors (49602599).

1438474501 is an equidigital number, since it uses as much as digits as its factorization.

1438474501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49602598.

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 1438474501 is about 37927.2263815850. The cubic root of 1438474501 is about 1128.8443300051.

The spelling of 1438474501 in words is "one billion, four hundred thirty-eight million, four hundred seventy-four thousand, five hundred one".