42920688 has 20 divisors (see below), whose sum is σ = 110878568. Its totient is φ = 14306880.

The previous prime is 42920687. The next prime is 42920701. The reversal of 42920688 is 88602924.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42920681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 447043 + ... + 447138.

Almost surely, 2^42920688 is an apocalyptic number.

42920688 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

42920688 is an abundant number, since it is smaller than the sum of its proper divisors (67957880).

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

42920688 is a wasteful number, since it uses less digits than its factorization.

42920688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894192 (or 894186 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 42920688 is about 6551.3882498292. The cubic root of 42920688 is about 350.1242769553.

The spelling of 42920688 in words is "forty-two million, nine hundred twenty thousand, six hundred eighty-eight".