49423920 has 320 divisors, whose sum is σ = 197320704. Its totient is φ = 9953280.

The previous prime is 49423903. The next prime is 49423949. The reversal of 49423920 is 2932494.

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 63 ways as a sum of consecutive naturals, for example, 677004 + ... + 677076.

Almost surely, 2^49423920 is an apocalyptic number.

49423920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49423920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98660352).

49423920 is an abundant number, since it is smaller than the sum of its proper divisors (147896784).

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

49423920 is a wasteful number, since it uses less digits than its factorization.

49423920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 49423920 is about 7030.2147904598. The cubic root of 49423920 is about 366.9828164015.

The spelling of 49423920 in words is "forty-nine million, four hundred twenty-three thousand, nine hundred twenty".