49845040 has 40 divisors (see below), whose sum is σ = 132446880. Its totient is φ = 17089536.

The previous prime is 49845023. The next prime is 49845049. The reversal of 49845040 is 4054894.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 49844987 and 49845005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49845049) 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, 43945 + ... + 45064.

It is an arithmetic number, because the mean of its divisors is an integer number (3311172).

Almost surely, 2^49845040 is an apocalyptic number.

49845040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49845040 is an abundant number, since it is smaller than the sum of its proper divisors (82601840).

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

49845040 is a wasteful number, since it uses less digits than its factorization.

49845040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89029 (or 89023 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 49845040 is about 7060.1019822663. The cubic root of 49845040 is about 368.0221710020.

The spelling of 49845040 in words is "forty-nine million, eight hundred forty-five thousand, forty".