61396188 has 48 divisors (see below), whose sum is σ = 167725824. Its totient is φ = 17112960.

The previous prime is 61396169. The next prime is 61396211. The reversal of 61396188 is 88169316.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5470 + ... + 12357.

It is an arithmetic number, because the mean of its divisors is an integer number (3494288).

Almost surely, 2^61396188 is an apocalyptic number.

It is an amenable number.

61396188 is an abundant number, since it is smaller than the sum of its proper divisors (106329636).

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

61396188 is a wasteful number, since it uses less digits than its factorization.

61396188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17882 (or 17880 counting only the distinct ones).

The product of its digits is 62208, while the sum is 42.

The square root of 61396188 is about 7835.5719638071. The cubic root of 61396188 is about 394.5001164619.

The spelling of 61396188 in words is "sixty-one million, three hundred ninety-six thousand, one hundred eighty-eight".