49978680 has 64 divisors (see below), whose sum is σ = 151351200. Its totient is φ = 13201920.

The previous prime is 49978667. The next prime is 49978681. The reversal of 49978680 is 8687994.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49978681) 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, 11170 + ... + 14990.

Almost surely, 2^49978680 is an apocalyptic number.

49978680 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 49978680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75675600).

49978680 is an abundant number, since it is smaller than the sum of its proper divisors (101372520).

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

49978680 is a wasteful number, since it uses less digits than its factorization.

49978680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3944 (or 3940 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 49978680 is about 7069.5600994687. The cubic root of 49978680 is about 368.3507800521.

The spelling of 49978680 in words is "forty-nine million, nine hundred seventy-eight thousand, six hundred eighty".