1478021212 has 18 divisors (see below), whose sum is σ = 2605687112. Its totient is φ = 733579104.

The previous prime is 1478021201. The next prime is 1478021219. The reversal of 1478021212 is 2121208741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1478021219) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65233 + ... + 84919.

Almost surely, 2^1478021212 is an apocalyptic number.

It is an amenable number.

1478021212 is a deficient number, since it is larger than the sum of its proper divisors (1127665900).

1478021212 is a wasteful number, since it uses less digits than its factorization.

1478021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19965 (or 19826 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 1478021212 is about 38445.0414488007. The cubic root of 1478021212 is about 1139.0957259069.

Adding to 1478021212 its reverse (2121208741), we get a palindrome (3599229953).

The spelling of 1478021212 in words is "one billion, four hundred seventy-eight million, twenty-one thousand, two hundred twelve".