42777371 has 8 divisors (see below), whose sum is σ = 52649184. Its totient is φ = 33845760.

The previous prime is 42777367. The next prime is 42777373. The reversal of 42777371 is 17377724.

It is a happy number.

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

It is not a de Polignac number, because 42777371 - 2² = 42777367 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42777373) 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, 234950 + ... + 235131.

It is an arithmetic number, because the mean of its divisors is an integer number (6581148).

Almost surely, 2^42777371 is an apocalyptic number.

42777371 is a deficient number, since it is larger than the sum of its proper divisors (9871813).

42777371 is a wasteful number, since it uses less digits than its factorization.

42777371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470101.

The product of its digits is 57624, while the sum is 38.

The square root of 42777371 is about 6540.4411930695. The cubic root of 42777371 is about 349.7341409625.

The spelling of 42777371 in words is "forty-two million, seven hundred seventy-seven thousand, three hundred seventy-one".