49999400 has 48 divisors (see below), whose sum is σ = 126822240. Its totient is φ = 18180800.

The previous prime is 49999387. The next prime is 49999403. The reversal of 49999400 is 499994.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (49999403) 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, 9164 + ... + 13563.

It is an arithmetic number, because the mean of its divisors is an integer number (2642130).

Almost surely, 2^49999400 is an apocalyptic number.

49999400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49999400 is an abundant number, since it is smaller than the sum of its proper divisors (76822840).

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

49999400 is a wasteful number, since it uses less digits than its factorization.

49999400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22754 (or 22745 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 49999400 is about 7071.0253853313. The cubic root of 49999400 is about 368.4016762455.

Multiplying 49999400 by its reverse (499994), we get a square (24999400003600 = 4999940²).

49999400 divided by its reverse (499994) gives a square (100 = 10²).

It can be divided in two parts, 499 and 99400, that added together give a palindrome (99899).

The spelling of 49999400 in words is "forty-nine million, nine hundred ninety-nine thousand, four hundred".