47490090 has 16 divisors (see below), whose sum is σ = 113976288. Its totient is φ = 12664016.

The previous prime is 47490059. The next prime is 47490097. The reversal of 47490090 is 9009474.

It is not an unprimeable number, because it can be changed into a prime (47490097) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 791472 + ... + 791531.

It is an arithmetic number, because the mean of its divisors is an integer number (7123518).

Almost surely, 2^47490090 is an apocalyptic number.

47490090 is an abundant number, since it is smaller than the sum of its proper divisors (66486198).

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

47490090 is a wasteful number, since it uses less digits than its factorization.

47490090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583013.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 47490090 is about 6891.3053915786. The cubic root of 47490090 is about 362.1326345676.

The spelling of 47490090 in words is "forty-seven million, four hundred ninety thousand, ninety".