49424720 has 20 divisors (see below), whose sum is σ = 114912660. Its totient is φ = 19769856.

The previous prime is 49424707. The next prime is 49424737. The reversal of 49424720 is 2742494.

It can be written as a sum of positive squares in 2 ways, for example, as 34245904 + 15178816 = 5852^2 + 3896^2 .

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

It is a congruent number.

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, 308825 + ... + 308984.

It is an arithmetic number, because the mean of its divisors is an integer number (5745633).

Almost surely, 2^49424720 is an apocalyptic number.

49424720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49424720 is an abundant number, since it is smaller than the sum of its proper divisors (65487940).

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

49424720 is a wasteful number, since it uses less digits than its factorization.

49424720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617822 (or 617816 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 49424720 is about 7030.2716874954. The cubic root of 49424720 is about 366.9847964459.

The spelling of 49424720 in words is "forty-nine million, four hundred twenty-four thousand, seven hundred twenty".