61838802 has 40 divisors (see below), whose sum is σ = 140154300. Its totient is φ = 20376576.

The previous prime is 61838801. The next prime is 61838807. The reversal of 61838802 is 20883816.

61838802 is a `hidden beast` number, since 618 + 38 + 8 + 0 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 61168041 + 670761 = 7821^2 + 819^2 .

It is not an unprimeable number, because it can be changed into a prime (61838801) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12274 + ... + 16562.

Almost surely, 2^61838802 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61838802, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70077150).

61838802 is an abundant number, since it is smaller than the sum of its proper divisors (78315498).

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

61838802 is a wasteful number, since it uses less digits than its factorization.

61838802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4392 (or 4383 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 61838802 is about 7863.7651287408. The cubic root of 61838802 is about 395.4458502466.

The spelling of 61838802 in words is "sixty-one million, eight hundred thirty-eight thousand, eight hundred two".