49739820 has 96 divisors (see below), whose sum is σ = 153576192. Its totient is φ = 11950848.

The previous prime is 49739819. The next prime is 49739857. The reversal of 49739820 is 2893794.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32799 + ... + 34281.

It is an arithmetic number, because the mean of its divisors is an integer number (1599752).

Almost surely, 2^49739820 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49739820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76788096).

49739820 is an abundant number, since it is smaller than the sum of its proper divisors (103836372).

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

49739820 is a wasteful number, since it uses less digits than its factorization.

49739820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1551 (or 1549 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 49739820 is about 7052.6463118464. The cubic root of 49739820 is about 367.7630307252.

The spelling of 49739820 in words is "forty-nine million, seven hundred thirty-nine thousand, eight hundred twenty".