2447400989 has 16 divisors (see below), whose sum is σ = 2761488384. Its totient is φ = 2148865200.

The previous prime is 2447400983. The next prime is 2447401003. The reversal of 2447400989 is 9890047442.

It is a cyclic number.

It is not a de Polignac number, because 2447400989 - 2¹² = 2447396893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2447400983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171482 + ... + 185204.

It is an arithmetic number, because the mean of its divisors is an integer number (172593024).

Almost surely, 2^2447400989 is an apocalyptic number.

It is an amenable number.

2447400989 is a deficient number, since it is larger than the sum of its proper divisors (314087395).

2447400989 is a wasteful number, since it uses less digits than its factorization.

2447400989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14288.

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 2447400989 is about 49471.2137409221. The cubic root of 2447400989 is about 1347.6228837993.

The spelling of 2447400989 in words is "two billion, four hundred forty-seven million, four hundred thousand, nine hundred eighty-nine".