42712500 has 144 divisors (see below), whose sum is σ = 133866432. Its totient is φ = 10560000.

The previous prime is 42712499. The next prime is 42712511. The reversal of 42712500 is 521724.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 637467 + ... + 637533.

It is an arithmetic number, because the mean of its divisors is an integer number (929628).

Almost surely, 2^42712500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42712500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66933216).

42712500 is an abundant number, since it is smaller than the sum of its proper divisors (91153932).

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

42712500 is a wasteful number, since it uses less digits than its factorization.

42712500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 42712500 is about 6535.4800894808. The cubic root of 42712500 is about 349.5572633203.

The spelling of 42712500 in words is "forty-two million, seven hundred twelve thousand, five hundred".