49267840 has 64 divisors (see below), whose sum is σ = 122938560. Its totient is φ = 18844672.

The previous prime is 49267837. The next prime is 49267843. The reversal of 49267840 is 4876294.

It is an interprime number because it is at equal distance from previous prime (49267837) and next prime (49267843).

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 49267793 and 49267802.

It is not an unprimeable number, because it can be changed into a prime (49267843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13047 + ... + 16393.

It is an arithmetic number, because the mean of its divisors is an integer number (1920915).

Almost surely, 2^49267840 is an apocalyptic number.

49267840 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 49267840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61469280).

49267840 is an abundant number, since it is smaller than the sum of its proper divisors (73670720).

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

49267840 is a wasteful number, since it uses less digits than its factorization.

49267840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3389 (or 3377 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 49267840 is about 7019.1053560977. The cubic root of 49267840 is about 366.5961002860.

The spelling of 49267840 in words is "forty-nine million, two hundred sixty-seven thousand, eight hundred forty".