49919388 has 48 divisors (see below), whose sum is σ = 120637440. Its totient is φ = 16055424.

The previous prime is 49919383. The next prime is 49919399. The reversal of 49919388 is 88391994.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 49919388.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49919383) 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, 45381 + ... + 46467.

It is an arithmetic number, because the mean of its divisors is an integer number (2513280).

Almost surely, 2^49919388 is an apocalyptic number.

It is an amenable number.

49919388 is an abundant number, since it is smaller than the sum of its proper divisors (70718052).

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

49919388 is a wasteful number, since it uses less digits than its factorization.

49919388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226 (or 1224 counting only the distinct ones).

The product of its digits is 559872, while the sum is 51.

The square root of 49919388 is about 7065.3653833330. The cubic root of 49919388 is about 368.2050586042.

The spelling of 49919388 in words is "forty-nine million, nine hundred nineteen thousand, three hundred eighty-eight".