42739500 has 48 divisors (see below), whose sum is σ = 124461792. Its totient is φ = 11396800.

The previous prime is 42739471. The next prime is 42739519. The reversal of 42739500 is 593724.

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

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 15 ways as a sum of consecutive naturals, for example, 12747 + ... + 15746.

It is an arithmetic number, because the mean of its divisors is an integer number (2592954).

Almost surely, 2^42739500 is an apocalyptic number.

It is an amenable number.

42739500 is an abundant number, since it is smaller than the sum of its proper divisors (81722292).

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

42739500 is a wasteful number, since it uses less digits than its factorization.

42739500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28515 (or 28503 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 42739500 is about 6537.5454109321. The cubic root of 42739500 is about 349.6309034187.

The spelling of 42739500 in words is "forty-two million, seven hundred thirty-nine thousand, five hundred".