61169430 has 64 divisors (see below), whose sum is σ = 170657280. Its totient is φ = 13741824.

The previous prime is 61169413. The next prime is 61169441. The reversal of 61169430 is 3496116.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9922 + ... + 14858.

It is an arithmetic number, because the mean of its divisors is an integer number (2666520).

Almost surely, 2^61169430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61169430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85328640).

61169430 is an abundant number, since it is smaller than the sum of its proper divisors (109487850).

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

61169430 is a wasteful number, since it uses less digits than its factorization.

61169430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5013.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 61169430 is about 7821.0887988822. The cubic root of 61169430 is about 394.0138408049.

The spelling of 61169430 in words is "sixty-one million, one hundred sixty-nine thousand, four hundred thirty".