42299772 has 12 divisors (see below), whose sum is σ = 98699496. Its totient is φ = 14099920.

The previous prime is 42299771. The next prime is 42299797. The reversal of 42299772 is 27799224.

42299772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×42299772² = 3578541422503968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42299771) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1762479 + ... + 1762502.

It is an arithmetic number, because the mean of its divisors is an integer number (8224958).

Almost surely, 2^42299772 is an apocalyptic number.

It is an amenable number.

42299772 is an abundant number, since it is smaller than the sum of its proper divisors (56399724).

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

42299772 is a wasteful number, since it uses less digits than its factorization.

42299772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3524988 (or 3524986 counting only the distinct ones).

The product of its digits is 127008, while the sum is 42.

The square root of 42299772 is about 6503.8274884871. The cubic root of 42299772 is about 348.4277011073.

It can be divided in two parts, 42299 and 772, that added together give a triangular number (43071 = T₂₉₃).

The spelling of 42299772 in words is "forty-two million, two hundred ninety-nine thousand, seven hundred seventy-two".