49142988 has 72 divisors (see below), whose sum is σ = 133857360. Its totient is φ = 15144960.

The previous prime is 49142981. The next prime is 49143037. The reversal of 49142988 is 88924194.

It is not an unprimeable number, because it can be changed into a prime (49142981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35428 + ... + 36788.

It is an arithmetic number, because the mean of its divisors is an integer number (1859130).

Almost surely, 2^49142988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49142988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66928680).

49142988 is an abundant number, since it is smaller than the sum of its proper divisors (84714372).

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

49142988 is a wasteful number, since it uses less digits than its factorization.

49142988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1447 (or 1442 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 49142988 is about 7010.2059884143. The cubic root of 49142988 is about 366.2861687384.

The spelling of 49142988 in words is "forty-nine million, one hundred forty-two thousand, nine hundred eighty-eight".