77146230 has 64 divisors (see below), whose sum is σ = 213539328. Its totient is φ = 17472000.

The previous prime is 77146219. The next prime is 77146253. The reversal of 77146230 is 3264177.

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, 22105 + ... + 25355.

It is an arithmetic number, because the mean of its divisors is an integer number (3336552).

Almost surely, 2^77146230 is an apocalyptic number.

77146230 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 77146230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106769664).

77146230 is an abundant number, since it is smaller than the sum of its proper divisors (136393098).

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

77146230 is a wasteful number, since it uses less digits than its factorization.

77146230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3381.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 77146230 is about 8783.2926627774. The cubic root of 77146230 is about 425.7012276115.

The spelling of 77146230 in words is "seventy-seven million, one hundred forty-six thousand, two hundred thirty".