49621398 has 32 divisors (see below), whose sum is σ = 104049792. Its totient is φ = 15758400.

The previous prime is 49621393. The next prime is 49621399. The reversal of 49621398 is 89312694.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49621391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8233 + ... + 12923.

It is an arithmetic number, because the mean of its divisors is an integer number (3251556).

Almost surely, 2^49621398 is an apocalyptic number.

49621398 is an abundant number, since it is smaller than the sum of its proper divisors (54428394).

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

49621398 is a wasteful number, since it uses less digits than its factorization.

49621398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4780.

The product of its digits is 93312, while the sum is 42.

The square root of 49621398 is about 7044.2457367698. The cubic root of 49621398 is about 367.4709385136.

The spelling of 49621398 in words is "forty-nine million, six hundred twenty-one thousand, three hundred ninety-eight".