611213442 has 16 divisors (see below), whose sum is σ = 1397059392. Its totient is φ = 174632400.

The previous prime is 611213417. The next prime is 611213443. The reversal of 611213442 is 244312116.

It is not an unprimeable number, because it can be changed into a prime (611213443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7276309 + ... + 7276392.

It is an arithmetic number, because the mean of its divisors is an integer number (87316212).

Almost surely, 2^611213442 is an apocalyptic number.

611213442 is an abundant number, since it is smaller than the sum of its proper divisors (785845950).

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

611213442 is a wasteful number, since it uses less digits than its factorization.

611213442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14552713.

The product of its digits is 1152, while the sum is 24.

The square root of 611213442 is about 24722.7312811510. The cubic root of 611213442 is about 848.6545922141.

Adding to 611213442 its reverse (244312116), we get a palindrome (855525558).

The spelling of 611213442 in words is "six hundred eleven million, two hundred thirteen thousand, four hundred forty-two".