49018140 has 144 divisors (see below), whose sum is σ = 160157088. Its totient is φ = 12091392.

The previous prime is 49018139. The next prime is 49018141. The reversal of 49018140 is 4181094.

It is an interprime number because it is at equal distance from previous prime (49018139) and next prime (49018141).

It is a super-3 number, since 3×49018140³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49018141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 253884 + ... + 254076.

It is an arithmetic number, because the mean of its divisors is an integer number (1112202).

Almost surely, 2^49018140 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 49018140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80078544).

49018140 is an abundant number, since it is smaller than the sum of its proper divisors (111138948).

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

49018140 is a wasteful number, since it uses less digits than its factorization.

49018140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 49018140 is about 7001.2955943882. The cubic root of 49018140 is about 365.9757217614.

It can be divided in two parts, 4901 and 8140, that added together give a triangular number (13041 = T₁₆₁).

The spelling of 49018140 in words is "forty-nine million, eighteen thousand, one hundred forty".