42500766 has 48 divisors (see below), whose sum is σ = 106791552. Its totient is φ = 11037840.

The previous prime is 42500761. The next prime is 42500767. The reversal of 42500766 is 66700524.

It is a super-2 number, since 2×42500766² = 3612630221173512, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42500761) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 901 + ... + 9263.

It is an arithmetic number, because the mean of its divisors is an integer number (2224824).

Almost surely, 2^42500766 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42500766, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53395776).

42500766 is an abundant number, since it is smaller than the sum of its proper divisors (64290786).

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

42500766 is a wasteful number, since it uses less digits than its factorization.

42500766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8397 (or 8386 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 42500766 is about 6519.2611544561. The cubic root of 42500766 is about 348.9786989295.

The spelling of 42500766 in words is "forty-two million, five hundred thousand, seven hundred sixty-six".