49431400 has 48 divisors (see below), whose sum is σ = 115394400. Its totient is φ = 19692480.

The previous prime is 49431383. The next prime is 49431413. The reversal of 49431400 is 413494.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87519 + ... + 88081.

It is an arithmetic number, because the mean of its divisors is an integer number (2404050).

Almost surely, 2^49431400 is an apocalyptic number.

49431400 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 49431400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57697200).

49431400 is an abundant number, since it is smaller than the sum of its proper divisors (65963000).

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

49431400 is a wasteful number, since it uses less digits than its factorization.

49431400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018 (or 1009 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 49431400 is about 7030.7467597688. The cubic root of 49431400 is about 367.0013289827.

Adding to 49431400 its reverse (413494), we get a palindrome (49844894).

The spelling of 49431400 in words is "forty-nine million, four hundred thirty-one thousand, four hundred".