49140000 has 480 divisors, whose sum is σ = 220429440. Its totient is φ = 10368000.

The previous prime is 49139999. The next prime is 49140031. The reversal of 49140000 is 4194.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3779994 + ... + 3780006.

It is an arithmetic number, because the mean of its divisors is an integer number (459228).

Almost surely, 2^49140000 is an apocalyptic number.

49140000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49140000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110214720).

49140000 is an abundant number, since it is smaller than the sum of its proper divisors (171289440).

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

49140000 is a wasteful number, since it uses less digits than its factorization.

49140000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59 (or 30 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 49140000 is about 7009.9928673288. The cubic root of 49140000 is about 366.2787449240.

Adding to 49140000 its reverse (4194), we get a palindrome (49144194).

The spelling of 49140000 in words is "forty-nine million, one hundred forty thousand".