42770426 has 8 divisors (see below), whose sum is σ = 64204320. Its totient is φ = 21368988.

The previous prime is 42770407. The next prime is 42770437. The reversal of 42770426 is 62407724.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42770392 and 42770401.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4496 + ... + 10283.

It is an arithmetic number, because the mean of its divisors is an integer number (8025540).

Almost surely, 2^42770426 is an apocalyptic number.

42770426 is a deficient number, since it is larger than the sum of its proper divisors (21433894).

42770426 is a wasteful number, since it uses less digits than its factorization.

42770426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16228.

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 42770426 is about 6539.9102440324. The cubic root of 42770426 is about 349.7152132365.

The spelling of 42770426 in words is "forty-two million, seven hundred seventy thousand, four hundred twenty-six".