49821400 has 24 divisors (see below), whose sum is σ = 115835220. Its totient is φ = 19928480.

The previous prime is 49821397. The next prime is 49821419. The reversal of 49821400 is 412894.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 124354 + ... + 124753.

Almost surely, 2^49821400 is an apocalyptic number.

49821400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49821400 is an abundant number, since it is smaller than the sum of its proper divisors (66013820).

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

49821400 is a wasteful number, since it uses less digits than its factorization.

49821400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249123 (or 249114 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 49821400 is about 7058.4275869346. The cubic root of 49821400 is about 367.9639811943.

The spelling of 49821400 in words is "forty-nine million, eight hundred twenty-one thousand, four hundred".