42739476 has 24 divisors (see below), whose sum is σ = 107397024. Its totient is φ = 13150560.

The previous prime is 42739471. The next prime is 42739519. The reversal of 42739476 is 67493724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42739471) 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, 136830 + ... + 137141.

It is an arithmetic number, because the mean of its divisors is an integer number (4474876).

Almost surely, 2^42739476 is an apocalyptic number.

It is an amenable number.

42739476 is an abundant number, since it is smaller than the sum of its proper divisors (64657548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42739476 is a wasteful number, since it uses less digits than its factorization.

42739476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273991 (or 273989 counting only the distinct ones).

The product of its digits is 254016, while the sum is 42.

The square root of 42739476 is about 6537.5435753806. The cubic root of 42739476 is about 349.6308379746.

It can be divided in two parts, 427 and 39476, that added together give a triangular number (39903 = T₂₈₂).

The spelling of 42739476 in words is "forty-two million, seven hundred thirty-nine thousand, four hundred seventy-six".