48440989 has 4 divisors (see below), whose sum is σ = 48484156. Its totient is φ = 48397824.

The previous prime is 48440981. The next prime is 48440999. The reversal of 48440989 is 98904484.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37332100 + 11108889 = 6110^2 + 3333^2 .

It is a cyclic number.

It is not a de Polignac number, because 48440989 - 2³ = 48440981 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 (48440981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19854 + ... + 22159.

It is an arithmetic number, because the mean of its divisors is an integer number (12121039).

Almost surely, 2^48440989 is an apocalyptic number.

It is an amenable number.

48440989 is a deficient number, since it is larger than the sum of its proper divisors (43167).

48440989 is a wasteful number, since it uses less digits than its factorization.

48440989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43166.

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 48440989 is about 6959.9561061834. The cubic root of 48440989 is about 364.5336861078.

The spelling of 48440989 in words is "forty-eight million, four hundred forty thousand, nine hundred eighty-nine".