49690400 has 72 divisors (see below), whose sum is σ = 122335920. Its totient is φ = 19708160.

The previous prime is 49690363. The next prime is 49690409. The reversal of 49690400 is 409694.

It is a happy number.

49690400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (49690409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143027 + ... + 143373.

It is an arithmetic number, because the mean of its divisors is an integer number (1699110).

Almost surely, 2^49690400 is an apocalyptic number.

49690400 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 49690400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61167960).

49690400 is an abundant number, since it is smaller than the sum of its proper divisors (72645520).

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

49690400 is a wasteful number, since it uses less digits than its factorization.

49690400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546 (or 533 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 49690400 is about 7049.1417917361. The cubic root of 49690400 is about 367.6411909087.

The spelling of 49690400 in words is "forty-nine million, six hundred ninety thousand, four hundred".