1442540346 has 32 divisors (see below), whose sum is σ = 3109400448. Its totient is φ = 443517120.

The previous prime is 1442540339. The next prime is 1442540347. The reversal of 1442540346 is 6430452441.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1442540347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106476 + ... + 119256.

It is an arithmetic number, because the mean of its divisors is an integer number (97168764).

Almost surely, 2^1442540346 is an apocalyptic number.

1442540346 is an abundant number, since it is smaller than the sum of its proper divisors (1666860102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1442540346 is a wasteful number, since it uses less digits than its factorization.

1442540346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14246.

The product of its (nonzero) digits is 46080, while the sum is 33.

The square root of 1442540346 is about 37980.7891703161. The cubic root of 1442540346 is about 1129.9068881954.

Adding to 1442540346 its reverse (6430452441), we get a palindrome (7872992787).

The spelling of 1442540346 in words is "one billion, four hundred forty-two million, five hundred forty thousand, three hundred forty-six".