1472399378 has 18 divisors (see below), whose sum is σ = 2264745447. Its totient is φ = 717939180.

The previous prime is 1472399377. The next prime is 1472399387. The reversal of 1472399378 is 8739932741.

It can be written as a sum of positive squares in only one way, i.e., 736199689 + 736199689 = 27133^2 + 27133^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=27133.

It is not an unprimeable number, because it can be changed into a prime (1472399371) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2333123 + ... + 2333753.

Almost surely, 2^1472399378 is an apocalyptic number.

1472399378 is a deficient number, since it is larger than the sum of its proper divisors (792346069).

1472399378 is an frugal number, since it uses more digits than its factorization.

1472399378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350 (or 676 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 53.

The square root of 1472399378 is about 38371.8565878692. The cubic root of 1472399378 is about 1137.6496610714.

The spelling of 1472399378 in words is "one billion, four hundred seventy-two million, three hundred ninety-nine thousand, three hundred seventy-eight".