1421742472 has 16 divisors (see below), whose sum is σ = 2675681100. Its totient is φ = 708227520.

The previous prime is 1421742451. The next prime is 1421742473. The reversal of 1421742472 is 2742471241.

It can be written as a sum of positive squares in 2 ways, for example, as 1421742436 + 36 = 37706^2 + 6^2 .

It is not an unprimeable number, because it can be changed into a prime (1421742473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328179 + ... + 332482.

Almost surely, 2^1421742472 is an apocalyptic number.

It is an amenable number.

1421742472 is a deficient number, since it is larger than the sum of its proper divisors (1253938628).

1421742472 is a wasteful number, since it uses less digits than its factorization.

1421742472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660936 (or 660932 counting only the distinct ones).

The product of its digits is 25088, while the sum is 34.

The square root of 1421742472 is about 37706.0004773776. Note that the first 3 decimals coincide. The cubic root of 1421742472 is about 1124.4504237830.

The spelling of 1421742472 in words is "one billion, four hundred twenty-one million, seven hundred forty-two thousand, four hundred seventy-two".