42773436 has 18 divisors (see below), whose sum is σ = 108121832. Its totient is φ = 14257800.

The previous prime is 42773429. The next prime is 42773447. The reversal of 42773436 is 63437724.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1188151 = 42773436 / (4 + 2 + 7 + 7 + 3 + 4 + 3 + 6).

It is a nialpdrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 42773436.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 594040 + ... + 594111.

Almost surely, 2^42773436 is an apocalyptic number.

It is an amenable number.

42773436 is an abundant number, since it is smaller than the sum of its proper divisors (65348396).

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

42773436 is a wasteful number, since it uses less digits than its factorization.

42773436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188161 (or 1188156 counting only the distinct ones).

The product of its digits is 84672, while the sum is 36.

The square root of 42773436 is about 6540.1403654662. The cubic root of 42773436 is about 349.7234168654.

The spelling of 42773436 in words is "forty-two million, seven hundred seventy-three thousand, four hundred thirty-six".