2197837742 has 4 divisors (see below), whose sum is σ = 3296756616. Its totient is φ = 1098918870.

The previous prime is 2197837739. The next prime is 2197837751. The reversal of 2197837742 is 2477387912.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549459434 + ... + 549459437.

It is an arithmetic number, because the mean of its divisors is an integer number (824189154).

Almost surely, 2^2197837742 is an apocalyptic number.

2197837742 is a deficient number, since it is larger than the sum of its proper divisors (1098918874).

2197837742 is a wasteful number, since it uses less digits than its factorization.

2197837742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098918873.

The product of its digits is 1185408, while the sum is 50.

The square root of 2197837742 is about 46881.1021841424. The cubic root of 2197837742 is about 1300.1652141109.

The spelling of 2197837742 in words is "two billion, one hundred ninety-seven million, eight hundred thirty-seven thousand, seven hundred forty-two".