152204438 has 4 divisors (see below), whose sum is σ = 228306660. Its totient is φ = 76102218.

The previous prime is 152204431. The next prime is 152204443. The reversal of 152204438 is 834402251.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 152204438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152204431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38051108 + ... + 38051111.

It is an arithmetic number, because the mean of its divisors is an integer number (57076665).

Almost surely, 2^152204438 is an apocalyptic number.

152204438 is a deficient number, since it is larger than the sum of its proper divisors (76102222).

152204438 is an equidigital number, since it uses as much as digits as its factorization.

152204438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76102221.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 152204438 is about 12337.1162756943. The cubic root of 152204438 is about 533.9194868958.

Adding to 152204438 its reverse (834402251), we get a palindrome (986606689).

The spelling of 152204438 in words is "one hundred fifty-two million, two hundred four thousand, four hundred thirty-eight".