49809490 has 32 divisors (see below), whose sum is σ = 99066240. Its totient is φ = 17935104.

The previous prime is 49809481. The next prime is 49809491. The reversal of 49809490 is 9490894.

It is not an unprimeable number, because it can be changed into a prime (49809491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2460 + ... + 10279.

It is an arithmetic number, because the mean of its divisors is an integer number (3095820).

Almost surely, 2^49809490 is an apocalyptic number.

49809490 is a deficient number, since it is larger than the sum of its proper divisors (49256750).

49809490 is a wasteful number, since it uses less digits than its factorization.

49809490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12786.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 49809490 is about 7057.5838641847. The cubic root of 49809490 is about 367.9346577826.

The spelling of 49809490 in words is "forty-nine million, eight hundred nine thousand, four hundred ninety".