49809400 has 96 divisors (see below), whose sum is σ = 122135040. Its totient is φ = 18869760.

The previous prime is 49809391. The next prime is 49809401. The reversal of 49809400 is 490894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49809401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 392137 + ... + 392263.

It is an arithmetic number, because the mean of its divisors is an integer number (1272240).

Almost surely, 2^49809400 is an apocalyptic number.

49809400 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 49809400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61067520).

49809400 is an abundant number, since it is smaller than the sum of its proper divisors (72325640).

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

49809400 is a wasteful number, since it uses less digits than its factorization.

49809400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233 (or 224 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 49809400 is about 7057.5774880620. The cubic root of 49809400 is about 367.9344361773.

The spelling of 49809400 in words is "forty-nine million, eight hundred nine thousand, four hundred".