49641390 has 64 divisors (see below), whose sum is σ = 134913600. Its totient is φ = 12984192.

The previous prime is 49641367. The next prime is 49641391. The reversal of 49641390 is 9314694.

49641390 is a `hidden beast` number, since 4 + 9 + 641 + 3 + 9 + 0 = 666.

It is a super-2 number, since 2×49641390² = 4928535202264200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49641391) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12576 + ... + 16044.

It is an arithmetic number, because the mean of its divisors is an integer number (2108025).

Almost surely, 2^49641390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49641390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67456800).

49641390 is an abundant number, since it is smaller than the sum of its proper divisors (85272210).

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

49641390 is a wasteful number, since it uses less digits than its factorization.

49641390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3538 (or 3532 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 49641390 is about 7045.6646244340. The cubic root of 49641390 is about 367.5202820960.

The spelling of 49641390 in words is "forty-nine million, six hundred forty-one thousand, three hundred ninety".