49465440 has 72 divisors (see below), whose sum is σ = 168805728. Its totient is φ = 13190400.

The previous prime is 49465421. The next prime is 49465453. The reversal of 49465440 is 4456494.

It is a tau number, because it is divible by the number of its divisors (72).

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 = 49465395 and 49465404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15736 + ... + 18615.

It is an arithmetic number, because the mean of its divisors is an integer number (2344524).

Almost surely, 2^49465440 is an apocalyptic number.

49465440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49465440 is an abundant number, since it is smaller than the sum of its proper divisors (119340288).

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

49465440 is a wasteful number, since it uses less digits than its factorization.

49465440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34372 (or 34361 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 49465440 is about 7033.1671386368. The cubic root of 49465440 is about 367.0855524972.

The spelling of 49465440 in words is "forty-nine million, four hundred sixty-five thousand, four hundred forty".