49693440 has 72 divisors (see below), whose sum is σ = 158720688. Its totient is φ = 13250560.

The previous prime is 49693421. The next prime is 49693453. The reversal of 49693440 is 4439694.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2631 + ... + 10310.

It is an arithmetic number, because the mean of its divisors is an integer number (2204454).

Almost surely, 2^49693440 is an apocalyptic number.

49693440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49693440 is an abundant number, since it is smaller than the sum of its proper divisors (109027248).

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

49693440 is a wasteful number, since it uses less digits than its factorization.

49693440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12965 (or 12951 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 49693440 is about 7049.3574175240. The cubic root of 49693440 is about 367.6486880405.

The spelling of 49693440 in words is "forty-nine million, six hundred ninety-three thousand, four hundred forty".