49021388 has 12 divisors (see below), whose sum is σ = 92386560. Its totient is φ = 22625232.

The previous prime is 49021381. The next prime is 49021393. The reversal of 49021388 is 88312094.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (49021381) 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 3 ways as a sum of consecutive naturals, for example, 471308 + ... + 471411.

It is an arithmetic number, because the mean of its divisors is an integer number (7698880).

Almost surely, 2^49021388 is an apocalyptic number.

It is an amenable number.

49021388 is a deficient number, since it is larger than the sum of its proper divisors (43365172).

49021388 is a wasteful number, since it uses less digits than its factorization.

49021388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942736 (or 942734 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 49021388 is about 7001.5275476142. The cubic root of 49021388 is about 365.9838049111.

The spelling of 49021388 in words is "forty-nine million, twenty-one thousand, three hundred eighty-eight".