234519978 has 96 divisors (see below), whose sum is σ = 600956928. Its totient is φ = 60328800.

The previous prime is 234519977. The next prime is 234519997. The reversal of 234519978 is 879915432.

It is a super-2 number, since 2×234519978² = 109999240162240968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (234519977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 410433 + ... + 411003.

It is an arithmetic number, because the mean of its divisors is an integer number (6259968).

Almost surely, 2^234519978 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 234519978, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300478464).

234519978 is an abundant number, since it is smaller than the sum of its proper divisors (366436950).

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

234519978 is a wasteful number, since it uses less digits than its factorization.

234519978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728 (or 721 counting only the distinct ones).

The product of its digits is 544320, while the sum is 48.

The square root of 234519978 is about 15314.0451220440. The cubic root of 234519978 is about 616.6801200214.

The spelling of 234519978 in words is "two hundred thirty-four million, five hundred nineteen thousand, nine hundred seventy-eight".