49391424 has 112 divisors (see below), whose sum is σ = 147157440. Its totient is φ = 16243200.

The previous prime is 49391423. The next prime is 49391449. The reversal of 49391424 is 42419394.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49391423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174387 + ... + 174669.

Almost surely, 2^49391424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49391424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73578720).

49391424 is an abundant number, since it is smaller than the sum of its proper divisors (97766016).

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

49391424 is a wasteful number, since it uses less digits than its factorization.

49391424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405 (or 389 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 49391424 is about 7027.9032435002. The cubic root of 49391424 is about 366.9023689299.

The spelling of 49391424 in words is "forty-nine million, three hundred ninety-one thousand, four hundred twenty-four".