42774951 has 8 divisors (see below), whose sum is σ = 57190144. Its totient is φ = 28438200.

The previous prime is 42774943. The next prime is 42774959. The reversal of 42774951 is 15947724.

42774951 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42774943) and next prime (42774959).

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

It is not a de Polignac number, because 42774951 - 2³ = 42774943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42774959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18325 + ... + 20526.

It is an arithmetic number, because the mean of its divisors is an integer number (7148768).

Almost surely, 2^42774951 is an apocalyptic number.

42774951 is a deficient number, since it is larger than the sum of its proper divisors (14415193).

42774951 is a wasteful number, since it uses less digits than its factorization.

42774951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39221.

The product of its digits is 70560, while the sum is 39.

The square root of 42774951 is about 6540.2561876428. The cubic root of 42774951 is about 349.7275457887.

The spelling of 42774951 in words is "forty-two million, seven hundred seventy-four thousand, nine hundred fifty-one".