48690409 has 8 divisors (see below), whose sum is σ = 50469320. Its totient is φ = 46935936.

The previous prime is 48690401. The next prime is 48690419. The reversal of 48690409 is 90409684.

It can be written as a sum of positive squares in 4 ways, for example, as 7371225 + 41319184 = 2715^2 + 6428^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 48690409 - 2³ = 48690401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48690401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2004 + ... + 10069.

It is an arithmetic number, because the mean of its divisors is an integer number (6308665).

Almost surely, 2^48690409 is an apocalyptic number.

It is an amenable number.

48690409 is a deficient number, since it is larger than the sum of its proper divisors (1778911).

48690409 is a wasteful number, since it uses less digits than its factorization.

48690409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12219.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 48690409 is about 6977.8513168453. The cubic root of 48690409 is about 365.1582700117.

The spelling of 48690409 in words is "forty-eight million, six hundred ninety thousand, four hundred nine".