42377640 has 32 divisors (see below), whose sum is σ = 127133280. Its totient is φ = 11300672.

The previous prime is 42377633. The next prime is 42377659. The reversal of 42377640 is 4677324.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176454 + ... + 176693.

It is an arithmetic number, because the mean of its divisors is an integer number (3972915).

Almost surely, 2^42377640 is an apocalyptic number.

42377640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42377640 is an abundant number, since it is smaller than the sum of its proper divisors (84755640).

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

42377640 is a wasteful number, since it uses less digits than its factorization.

42377640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353161 (or 353157 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 33.

The square root of 42377640 is about 6509.8110571659. The cubic root of 42377640 is about 348.6413723683.

The spelling of 42377640 in words is "forty-two million, three hundred seventy-seven thousand, six hundred forty".