42774331 has 8 divisors (see below), whose sum is σ = 44251760. Its totient is φ = 41313888.

The previous prime is 42774323. The next prime is 42774337. The reversal of 42774331 is 13347724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42774331 - 2³ = 42774323 is a prime.

It is a super-2 number, since 2×42774331² = 3659286784995122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42774293 and 42774302.

It is not an unprimeable number, because it can be changed into a prime (42774337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 985 + ... + 9301.

It is an arithmetic number, because the mean of its divisors is an integer number (5531470).

Almost surely, 2^42774331 is an apocalyptic number.

42774331 is a deficient number, since it is larger than the sum of its proper divisors (1477429).

42774331 is a wasteful number, since it uses less digits than its factorization.

42774331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8493.

The product of its digits is 14112, while the sum is 31.

The square root of 42774331 is about 6540.2087887162. The cubic root of 42774331 is about 349.7258560761.

The spelling of 42774331 in words is "forty-two million, seven hundred seventy-four thousand, three hundred thirty-one".