438570542 has 4 divisors (see below), whose sum is σ = 657855816. Its totient is φ = 219285270.

The previous prime is 438570533. The next prime is 438570553. The reversal of 438570542 is 245075834.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 438570496 and 438570505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109642634 + ... + 109642637.

It is an arithmetic number, because the mean of its divisors is an integer number (164463954).

Almost surely, 2^438570542 is an apocalyptic number.

438570542 is a deficient number, since it is larger than the sum of its proper divisors (219285274).

438570542 is a wasteful number, since it uses less digits than its factorization.

438570542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219285273.

The product of its (nonzero) digits is 134400, while the sum is 38.

The square root of 438570542 is about 20942.0758760921. The cubic root of 438570542 is about 759.7659378479.

The spelling of 438570542 in words is "four hundred thirty-eight million, five hundred seventy thousand, five hundred forty-two".