1624230442 has 4 divisors (see below), whose sum is σ = 2436345666. Its totient is φ = 812115220.

The previous prime is 1624230431. The next prime is 1624230449. The reversal of 1624230442 is 2440324261.

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

It can be written as a sum of positive squares in only one way, i.e., 1225070001 + 399160441 = 35001^2 + 19979^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1624230442.

It is not an unprimeable number, because it can be changed into a prime (1624230449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406057609 + ... + 406057612.

Almost surely, 2^1624230442 is an apocalyptic number.

1624230442 is a deficient number, since it is larger than the sum of its proper divisors (812115224).

1624230442 is an equidigital number, since it uses as much as digits as its factorization.

1624230442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812115223.

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 1624230442 is about 40301.7424189079. The cubic root of 1624230442 is about 1175.4817260002.

The spelling of 1624230442 in words is "one billion, six hundred twenty-four million, two hundred thirty thousand, four hundred forty-two".