400234273 has 8 divisors (see below), whose sum is σ = 413381120. Its totient is φ = 387102240.

The previous prime is 400234267. The next prime is 400234279. The reversal of 400234273 is 372432004.

It is an interprime number because it is at equal distance from previous prime (400234267) and next prime (400234279).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400234273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400234279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86308 + ... + 90826.

It is an arithmetic number, because the mean of its divisors is an integer number (51672640).

Almost surely, 2^400234273 is an apocalyptic number.

It is an amenable number.

400234273 is a deficient number, since it is larger than the sum of its proper divisors (13146847).

400234273 is a wasteful number, since it uses less digits than its factorization.

400234273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7407.

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 400234273 is about 20005.8559676911. The cubic root of 400234273 is about 736.9501165066.

Adding to 400234273 its reverse (372432004), we get a palindrome (772666277).

The spelling of 400234273 in words is "four hundred million, two hundred thirty-four thousand, two hundred seventy-three".