1064478938 has 4 divisors (see below), whose sum is σ = 1596718410. Its totient is φ = 532239468.

The previous prime is 1064478929. The next prime is 1064478949. The reversal of 1064478938 is 8398744601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8398744601 = 13 ⋅646057277.

It can be written as a sum of positive squares in only one way, i.e., 1058656369 + 5822569 = 32537^2 + 2413^2 .

It is a super-2 number, since 2×1064478938² = 2266230818891215688, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 266119733 + ... + 266119736.

Almost surely, 2^1064478938 is an apocalyptic number.

1064478938 is a deficient number, since it is larger than the sum of its proper divisors (532239472).

1064478938 is an equidigital number, since it uses as much as digits as its factorization.

1064478938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532239471.

The product of its (nonzero) digits is 1161216, while the sum is 50.

The square root of 1064478938 is about 32626.3534278656. The cubic root of 1064478938 is about 1021.0468996207.

The spelling of 1064478938 in words is "one billion, sixty-four million, four hundred seventy-eight thousand, nine hundred thirty-eight".