49267440 has 100 divisors (see below), whose sum is σ = 171135624. Its totient is φ = 13136256.

The previous prime is 49267429. The next prime is 49267447. The reversal of 49267440 is 4476294.

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

It is a junction number, because it is equal to n+sod(n) for n = 49267395 and 49267404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49267447) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2679 + ... + 10281.

Almost surely, 2^49267440 is an apocalyptic number.

49267440 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 49267440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85567812).

49267440 is an abundant number, since it is smaller than the sum of its proper divisors (121868184).

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

49267440 is a wasteful number, since it uses less digits than its factorization.

49267440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7628 (or 7613 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 49267440 is about 7019.0768623801. The cubic root of 49267440 is about 366.5951081660.

The spelling of 49267440 in words is "forty-nine million, two hundred sixty-seven thousand, four hundred forty".