49215490 has 8 divisors (see below), whose sum is σ = 88587900. Its totient is φ = 19686192.

The previous prime is 49215479. The next prime is 49215553. The reversal of 49215490 is 9451294.

49215490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 44876601 + 4338889 = 6699^2 + 2083^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 2460765 + ... + 2460784.

Almost surely, 2^49215490 is an apocalyptic number.

49215490 is a deficient number, since it is larger than the sum of its proper divisors (39372410).

49215490 is a wasteful number, since it uses less digits than its factorization.

49215490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4921556.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 49215490 is about 7015.3752572475. The cubic root of 49215490 is about 366.4662109088.

The spelling of 49215490 in words is "forty-nine million, two hundred fifteen thousand, four hundred ninety".