42007764 has 24 divisors (see below), whose sum is σ = 99681120. Its totient is φ = 13765024.

The previous prime is 42007753. The next prime is 42007781. The reversal of 42007764 is 46770024.

It is a congruent number.

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, 28959 + ... + 30374.

It is an arithmetic number, because the mean of its divisors is an integer number (4153380).

Almost surely, 2^42007764 is an apocalyptic number.

It is an amenable number.

42007764 is an abundant number, since it is smaller than the sum of its proper divisors (57673356).

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

42007764 is a wasteful number, since it uses less digits than its factorization.

42007764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59399 (or 59397 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 42007764 is about 6481.3396763324. The cubic root of 42007764 is about 347.6240821141.

Adding to 42007764 its reverse (46770024), we get a palindrome (88777788).

The spelling of 42007764 in words is "forty-two million, seven thousand, seven hundred sixty-four".