42709080 has 32 divisors (see below), whose sum is σ = 128127600. Its totient is φ = 11389056.

The previous prime is 42709067. The next prime is 42709099. The reversal of 42709080 is 8090724.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177835 + ... + 178074.

Almost surely, 2^42709080 is an apocalyptic number.

42709080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42709080 is an abundant number, since it is smaller than the sum of its proper divisors (85418520).

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

42709080 is a wasteful number, since it uses less digits than its factorization.

42709080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355923 (or 355919 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 42709080 is about 6535.2184355230. The cubic root of 42709080 is about 349.5479333603.

The spelling of 42709080 in words is "forty-two million, seven hundred nine thousand, eighty".