48621818 has 24 divisors (see below), whose sum is σ = 86916564. Its totient is φ = 20328000.

The previous prime is 48621809. The next prime is 48621827. The reversal of 48621818 is 81812684.

It is an interprime number because it is at equal distance from previous prime (48621809) and next prime (48621827).

It can be written as a sum of positive squares in 2 ways, for example, as 48121969 + 499849 = 6937^2 + 707^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2033 + ... + 10068.

Almost surely, 2^48621818 is an apocalyptic number.

48621818 is a deficient number, since it is larger than the sum of its proper divisors (38294746).

48621818 is a wasteful number, since it uses less digits than its factorization.

48621818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12158 (or 12151 counting only the distinct ones).

The product of its digits is 24576, while the sum is 38.

The square root of 48621818 is about 6972.9346763038. The cubic root of 48621818 is about 364.9867212283.

The spelling of 48621818 in words is "forty-eight million, six hundred twenty-one thousand, eight hundred eighteen".