450234394 has 4 divisors (see below), whose sum is σ = 675351594. Its totient is φ = 225117196.

The previous prime is 450234391. The next prime is 450234397. The reversal of 450234394 is 493432054.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (450234391) and next prime (450234397).

It can be written as a sum of positive squares in only one way, i.e., 429028369 + 21206025 = 20713^2 + 4605^2 .

It is a super-2 number, since 2×450234394² = 405422019081094472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (450234391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112558597 + ... + 112558600.

Almost surely, 2^450234394 is an apocalyptic number.

450234394 is a deficient number, since it is larger than the sum of its proper divisors (225117200).

450234394 is a wasteful number, since it uses less digits than its factorization.

450234394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225117199.

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 450234394 is about 21218.7274359232. The cubic root of 450234394 is about 766.4424599164.

The spelling of 450234394 in words is "four hundred fifty million, two hundred thirty-four thousand, three hundred ninety-four".