234476840 has 32 divisors (see below), whose sum is σ = 568156680. Its totient is φ = 86575872.

The previous prime is 234476833. The next prime is 234476857. The reversal of 234476840 is 48674432.

It can be written as a sum of positive squares in 4 ways, for example, as 213335236 + 21141604 = 14606^2 + 4598^2 .

It is a junction number, because it is equal to n+sod(n) for n = 234476794 and 234476803.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224939 + ... + 225978.

Almost surely, 2^234476840 is an apocalyptic number.

234476840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234476840 is an abundant number, since it is smaller than the sum of its proper divisors (333679840).

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

234476840 is a wasteful number, since it uses less digits than its factorization.

234476840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450941 (or 450937 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 38.

The square root of 234476840 is about 15312.6366116355. The cubic root of 234476840 is about 616.6423066426.

The spelling of 234476840 in words is "two hundred thirty-four million, four hundred seventy-six thousand, eight hundred forty".