49346640 has 120 divisors (see below), whose sum is σ = 189416448. Its totient is φ = 11278080.

The previous prime is 49346623. The next prime is 49346651. The reversal of 49346640 is 4664394.

49346640 is a `hidden beast` number, since 4 + 9 + 3 + 4 + 6 + 640 = 666.

49346640 is nontrivially palindromic in base 11.

It is a tau number, because it is divible by the number of its divisors (120).

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 = 49346595 and 49346604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 145 + ... + 9935.

Almost surely, 2^49346640 is an apocalyptic number.

49346640 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 49346640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94708224).

49346640 is an abundant number, since it is smaller than the sum of its proper divisors (140069808).

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

49346640 is a wasteful number, since it uses less digits than its factorization.

49346640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9817 (or 9808 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 49346640 is about 7024.7163643808. The cubic root of 49346640 is about 366.7914433005.

The spelling of 49346640 in words is "forty-nine million, three hundred forty-six thousand, six hundred forty".