42634453 has 4 divisors (see below), whose sum is σ = 45142380. Its totient is φ = 40126528.

The previous prime is 42634441. The next prime is 42634463. The reversal of 42634453 is 35443624.

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

It can be written as a sum of positive squares in 2 ways, for example, as 34833604 + 7800849 = 5902^2 + 2793^2 .

It is not a de Polignac number, because 42634453 - 2¹⁷ = 42503381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42634463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1253938 + ... + 1253971.

It is an arithmetic number, because the mean of its divisors is an integer number (11285595).

Almost surely, 2^42634453 is an apocalyptic number.

It is an amenable number.

42634453 is a deficient number, since it is larger than the sum of its proper divisors (2507927).

42634453 is a wasteful number, since it uses less digits than its factorization.

42634453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2507926.

The product of its digits is 34560, while the sum is 31.

The square root of 42634453 is about 6529.5063366230. The cubic root of 42634453 is about 349.3442224097.

The spelling of 42634453 in words is "forty-two million, six hundred thirty-four thousand, four hundred fifty-three".