49432290 has 64 divisors (see below), whose sum is σ = 127844352. Its totient is φ = 12196800.

The previous prime is 49432289. The next prime is 49432301. The reversal of 49432290 is 9223494.

49432290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20235 + ... + 22545.

It is an arithmetic number, because the mean of its divisors is an integer number (1997568).

Almost surely, 2^49432290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49432290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63922176).

49432290 is an abundant number, since it is smaller than the sum of its proper divisors (78412062).

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

49432290 is a wasteful number, since it uses less digits than its factorization.

49432290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2375.

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

The square root of 49432290 is about 7030.8100529029. The cubic root of 49432290 is about 367.0035315585.

The spelling of 49432290 in words is "forty-nine million, four hundred thirty-two thousand, two hundred ninety".