1420799247 has 36 divisors (see below), whose sum is σ = 2421007056. Its totient is φ = 800432640.

The previous prime is 1420799227. The next prime is 1420799257. The reversal of 1420799247 is 7429970241.

It is a happy number.

It is not a de Polignac number, because 1420799247 - 2¹⁴ = 1420782863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420799227) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8623 + ... + 53999.

It is an arithmetic number, because the mean of its divisors is an integer number (67250196).

Almost surely, 2^1420799247 is an apocalyptic number.

1420799247 is a deficient number, since it is larger than the sum of its proper divisors (1000207809).

1420799247 is a wasteful number, since it uses less digits than its factorization.

1420799247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45468 (or 45458 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 1420799247 is about 37693.4907775865. The cubic root of 1420799247 is about 1124.2017044815.

The spelling of 1420799247 in words is "one billion, four hundred twenty million, seven hundred ninety-nine thousand, two hundred forty-seven".