42772995 has 32 divisors (see below), whose sum is σ = 76818240. Its totient is φ = 22579200.

The previous prime is 42772991. The next prime is 42773011. The reversal of 42772995 is 59927724.

It is not a de Polignac number, because 42772995 - 2² = 42772991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 42772995.

It is not an unprimeable number, because it can be changed into a prime (42772991) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12067 + ... + 15203.

It is an arithmetic number, because the mean of its divisors is an integer number (2400570).

Almost surely, 2^42772995 is an apocalyptic number.

42772995 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42772995 is a deficient number, since it is larger than the sum of its proper divisors (34045245).

42772995 is a wasteful number, since it uses less digits than its factorization.

42772995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3252 (or 3246 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 42772995 is about 6540.1066505065. The cubic root of 42772995 is about 349.7222149624.

The spelling of 42772995 in words is "forty-two million, seven hundred seventy-two thousand, nine hundred ninety-five".