42212377 has 8 divisors (see below), whose sum is σ = 44891496. Its totient is φ = 39555072.

The previous prime is 42212351. The next prime is 42212399. The reversal of 42212377 is 77321224.

It can be written as a sum of positive squares in 4 ways, for example, as 467856 + 41744521 = 684^2 + 6461^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42212377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42212347) 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, 1368 + ... + 9289.

It is an arithmetic number, because the mean of its divisors is an integer number (5611437).

Almost surely, 2^42212377 is an apocalyptic number.

It is an amenable number.

42212377 is a deficient number, since it is larger than the sum of its proper divisors (2679119).

42212377 is a wasteful number, since it uses less digits than its factorization.

42212377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10907.

The product of its digits is 4704, while the sum is 28.

The square root of 42212377 is about 6497.1052785067. The cubic root of 42212377 is about 348.1875750344.

The spelling of 42212377 in words is "forty-two million, two hundred twelve thousand, three hundred seventy-seven".