48393540 has 72 divisors (see below), whose sum is σ = 158093208. Its totient is φ = 11911680.

The previous prime is 48393491. The next prime is 48393563. The reversal of 48393540 is 4539384.

It can be written as a sum of positive squares in 4 ways, for example, as 617796 + 47775744 = 786^2 + 6912^2 .

It is a super-4 number, since 4×48393540⁴ (a number of 32 digits) contains 4444 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 48393495 and 48393504.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8001 + ... + 12680.

It is an arithmetic number, because the mean of its divisors is an integer number (2195739).

Almost surely, 2^48393540 is an apocalyptic number.

It is an amenable number.

48393540 is an abundant number, since it is smaller than the sum of its proper divisors (109699668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

48393540 is a wasteful number, since it uses less digits than its factorization.

48393540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20709 (or 20704 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 48393540 is about 6956.5465570209. The cubic root of 48393540 is about 364.4146243392.

The spelling of 48393540 in words is "forty-eight million, three hundred ninety-three thousand, five hundred forty".