49284440 has 32 divisors (see below), whose sum is σ = 111214080. Its totient is φ = 19656192.

The previous prime is 49284409. The next prime is 49284449. The reversal of 49284440 is 4448294.

It is a super-2 number, since 2×49284440² = 4857912052227200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 49284440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49284449) 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, 13712 + ... + 16928.

It is an arithmetic number, because the mean of its divisors is an integer number (3475440).

Almost surely, 2^49284440 is an apocalyptic number.

49284440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49284440 is an abundant number, since it is smaller than the sum of its proper divisors (61929640).

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

49284440 is a wasteful number, since it uses less digits than its factorization.

49284440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3611 (or 3607 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 49284440 is about 7020.2877433906. The cubic root of 49284440 is about 366.6372685337.

The spelling of 49284440 in words is "forty-nine million, two hundred eighty-four thousand, four hundred forty".