49420840 has 32 divisors (see below), whose sum is σ = 127082880. Its totient is φ = 16944192.

The previous prime is 49420837. The next prime is 49420841. The reversal of 49420840 is 4802494.

It is not an unprimeable number, because it can be changed into a prime (49420841) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 87972 + ... + 88531.

It is an arithmetic number, because the mean of its divisors is an integer number (3971340).

Almost surely, 2^49420840 is an apocalyptic number.

49420840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49420840 is an abundant number, since it is smaller than the sum of its proper divisors (77662040).

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

49420840 is a wasteful number, since it uses less digits than its factorization.

49420840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176521 (or 176517 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 49420840 is about 7029.9957325734. The cubic root of 49420840 is about 366.9751930310.

The spelling of 49420840 in words is "forty-nine million, four hundred twenty thousand, eight hundred forty".