49545040 has 20 divisors (see below), whose sum is σ = 115192404. Its totient is φ = 19817984.

The previous prime is 49545031. The next prime is 49545043. The reversal of 49545040 is 4054594.

It can be written as a sum of positive squares in 2 ways, for example, as 11451456 + 38093584 = 3384^2 + 6172^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 49544993 and 49545011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49545043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 309577 + ... + 309736.

Almost surely, 2^49545040 is an apocalyptic number.

49545040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49545040 is an abundant number, since it is smaller than the sum of its proper divisors (65647364).

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

49545040 is a wasteful number, since it uses less digits than its factorization.

49545040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619326 (or 619320 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 49545040 is about 7038.8237653744. The cubic root of 49545040 is about 367.2823521909.

The spelling of 49545040 in words is "forty-nine million, five hundred forty-five thousand, forty".