1438960945 has 16 divisors (see below), whose sum is σ = 1790350848. Its totient is φ = 1109099520.

The previous prime is 1438960933. The next prime is 1438960961. The reversal of 1438960945 is 5490698341.

It is a happy number.

It is not a de Polignac number, because 1438960945 - 2²³ = 1430572337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14737 + ... + 55633.

It is an arithmetic number, because the mean of its divisors is an integer number (111896928).

Almost surely, 2^1438960945 is an apocalyptic number.

It is an amenable number.

1438960945 is a deficient number, since it is larger than the sum of its proper divisors (351389903).

1438960945 is a wasteful number, since it uses less digits than its factorization.

1438960945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41160.

The product of its (nonzero) digits is 933120, while the sum is 49.

The square root of 1438960945 is about 37933.6386997082. The cubic root of 1438960945 is about 1128.9715614725.

The spelling of 1438960945 in words is "one billion, four hundred thirty-eight million, nine hundred sixty thousand, nine hundred forty-five".