49979400 has 48 divisors (see below), whose sum is σ = 154938000. Its totient is φ = 13327680.

The previous prime is 49979399. The next prime is 49979401. The reversal of 49979400 is 497994.

It is an interprime number because it is at equal distance from previous prime (49979399) and next prime (49979401).

It is not an unprimeable number, because it can be changed into a prime (49979401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41050 + ... + 42249.

It is an arithmetic number, because the mean of its divisors is an integer number (3227875).

Almost surely, 2^49979400 is an apocalyptic number.

49979400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49979400 is an abundant number, since it is smaller than the sum of its proper divisors (104958600).

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

49979400 is a wasteful number, since it uses less digits than its factorization.

49979400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83318 (or 83309 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 49979400 is about 7069.6110218314. The cubic root of 49979400 is about 368.3525488816.

The spelling of 49979400 in words is "forty-nine million, nine hundred seventy-nine thousand, four hundred".