49269990 has 144 divisors (see below), whose sum is σ = 151741296. Its totient is φ = 10200960.

The previous prime is 49269989. The next prime is 49270003. The reversal of 49269990 is 9996294.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 177732 + ... + 178008.

It is an arithmetic number, because the mean of its divisors is an integer number (1053759).

Almost surely, 2^49269990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49269990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75870648).

49269990 is an abundant number, since it is smaller than the sum of its proper divisors (102471306).

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

49269990 is a wasteful number, since it uses less digits than its factorization.

49269990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323 (or 305 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 48.

The square root of 49269990 is about 7019.2585078482. The cubic root of 49269990 is about 366.6014328394.

The spelling of 49269990 in words is "forty-nine million, two hundred sixty-nine thousand, nine hundred ninety".