61434198 has 48 divisors (see below), whose sum is σ = 154635936. Its totient is φ = 17262720.

The previous prime is 61434181. The next prime is 61434227. The reversal of 61434198 is 89143416.

61434198 is a `hidden beast` number, since 614 + 34 + 1 + 9 + 8 = 666.

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, 3690 + ... + 11682.

It is an arithmetic number, because the mean of its divisors is an integer number (3221582).

Almost surely, 2^61434198 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61434198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77317968).

61434198 is an abundant number, since it is smaller than the sum of its proper divisors (93201738).

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

61434198 is a wasteful number, since it uses less digits than its factorization.

61434198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8069 (or 8066 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 61434198 is about 7837.9970655774. The cubic root of 61434198 is about 394.5815105275.

The spelling of 61434198 in words is "sixty-one million, four hundred thirty-four thousand, one hundred ninety-eight".