49312040 has 16 divisors (see below), whose sum is σ = 110952180. Its totient is φ = 19724800.

The previous prime is 49312031. The next prime is 49312051. The reversal of 49312040 is 4021394.

It can be written as a sum of positive squares in 2 ways, for example, as 47637604 + 1674436 = 6902^2 + 1294^2 .

It is a junction number, because it is equal to n+sod(n) for n = 49311997 and 49312015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 616361 + ... + 616440.

Almost surely, 2^49312040 is an apocalyptic number.

49312040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49312040 is an abundant number, since it is smaller than the sum of its proper divisors (61640140).

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

49312040 is a wasteful number, since it uses less digits than its factorization.

49312040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232812 (or 1232808 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 49312040 is about 7022.2531996504. The cubic root of 49312040 is about 366.7056964881.

The spelling of 49312040 in words is "forty-nine million, three hundred twelve thousand, forty".