49373640 has 192 divisors, whose sum is σ = 171849600. Its totient is φ = 12266496.

The previous prime is 49373603. The next prime is 49373659. The reversal of 49373640 is 4637394.

49373640 is a `hidden beast` number, since 4 + 9 + 3 + 7 + 3 + 640 = 666.

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 = 49373595 and 49373604.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 554716 + ... + 554804.

It is an arithmetic number, because the mean of its divisors is an integer number (895050).

Almost surely, 2^49373640 is an apocalyptic number.

49373640 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 49373640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85924800).

49373640 is an abundant number, since it is smaller than the sum of its proper divisors (122475960).

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

49373640 is a wasteful number, since it uses less digits than its factorization.

49373640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 49373640 is about 7026.6378873541. The cubic root of 49373640 is about 366.8583277145.

The spelling of 49373640 in words is "forty-nine million, three hundred seventy-three thousand, six hundred forty".