434623645 has 8 divisors (see below), whose sum is σ = 535644504. Its totient is φ = 338301504.

The previous prime is 434623639. The next prime is 434623669. The reversal of 434623645 is 546326434.

434623645 = 14741² + 14742².

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 217326564 + 217297081 = 14742^2 + 14741^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 434623645 - 2¹⁷ = 434492573 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

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, 1174474 + ... + 1174843.

It is an arithmetic number, because the mean of its divisors is an integer number (66955563).

Almost surely, 2^434623645 is an apocalyptic number.

434623645 is the 14742-nd centered square number.

It is an amenable number.

434623645 is a deficient number, since it is larger than the sum of its proper divisors (101020859).

434623645 is a wasteful number, since it uses less digits than its factorization.

434623645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2349359.

The product of its digits is 207360, while the sum is 37.

The square root of 434623645 is about 20847.6292417148. The cubic root of 434623645 is about 757.4799059395.

The spelling of 434623645 in words is "four hundred thirty-four million, six hundred twenty-three thousand, six hundred forty-five".