49573440 has 168 divisors, whose sum is σ = 194950080. Its totient is φ = 11326464.

The previous prime is 49573427. The next prime is 49573471. The reversal of 49573440 is 4437594.

49573440 is a `hidden beast` number, since 49 + 573 + 4 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 49573395 and 49573404.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18931 + ... + 21389.

Almost surely, 2^49573440 is an apocalyptic number.

49573440 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 49573440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97475040).

49573440 is an abundant number, since it is smaller than the sum of its proper divisors (145376640).

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

49573440 is a wasteful number, since it uses less digits than its factorization.

49573440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2489 (or 2476 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 49573440 is about 7040.8408588747. The cubic root of 49573440 is about 367.3525161360.

The spelling of 49573440 in words is "forty-nine million, five hundred seventy-three thousand, four hundred forty".