49669400 has 96 divisors (see below), whose sum is σ = 127759680. Its totient is φ = 17808000.

The previous prime is 49669379. The next prime is 49669453. The reversal of 49669400 is 496694.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 235295 + ... + 235505.

It is an arithmetic number, because the mean of its divisors is an integer number (1330830).

Almost surely, 2^49669400 is an apocalyptic number.

49669400 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 49669400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63879840).

49669400 is an abundant number, since it is smaller than the sum of its proper divisors (78090280).

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

49669400 is a wasteful number, since it uses less digits than its factorization.

49669400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345 (or 336 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 49669400 is about 7047.6520912996. The cubic root of 49669400 is about 367.5893931579.

Multiplying 49669400 by its reverse (496694), we get a square (24670492963600 = 4966940²).

49669400 divided by its reverse (496694) gives a square (100 = 10²).

It can be divided in two parts, 496 and 69400, that added together give a palindrome (69896).

The spelling of 49669400 in words is "forty-nine million, six hundred sixty-nine thousand, four hundred".