49902198 has 16 divisors (see below), whose sum is σ = 100091376. Its totient is φ = 16586240.

The previous prime is 49902121. The next prime is 49902199. The reversal of 49902198 is 89120994.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49902199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9663 + ... + 13898.

It is an arithmetic number, because the mean of its divisors is an integer number (6255711).

Almost surely, 2^49902198 is an apocalyptic number.

49902198 is an abundant number, since it is smaller than the sum of its proper divisors (50189178).

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

49902198 is a wasteful number, since it uses less digits than its factorization.

49902198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23919.

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 49902198 is about 7064.1487809927. The cubic root of 49902198 is about 368.1627893118.

Subtracting 49902198 from its reverse (89120994), we obtain a triangular number (39218796 = T₈₈₅₆).

The spelling of 49902198 in words is "forty-nine million, nine hundred two thousand, one hundred ninety-eight".