234020451 has 16 divisors (see below), whose sum is σ = 356935424. Its totient is φ = 133601184.

The previous prime is 234020447. The next prime is 234020467. The reversal of 234020451 is 154020432.

It is not a de Polignac number, because 234020451 - 2² = 234020447 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (234020411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20880 + ... + 30066.

It is an arithmetic number, because the mean of its divisors is an integer number (22308464).

Almost surely, 2^234020451 is an apocalyptic number.

234020451 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

234020451 is a deficient number, since it is larger than the sum of its proper divisors (122914973).

234020451 is a wasteful number, since it uses less digits than its factorization.

234020451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10410.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 234020451 is about 15297.7269880201. The cubic root of 234020451 is about 616.2419663849.

Adding to 234020451 its reverse (154020432), we get a palindrome (388040883).

It can be divided in two parts, 2340 and 20451, that added together give a triangular number (22791 = T₂₁₃).

The spelling of 234020451 in words is "two hundred thirty-four million, twenty thousand, four hundred fifty-one".