42606990 has 24 divisors (see below), whose sum is σ = 110778408. Its totient is φ = 11361840.

The previous prime is 42606983. The next prime is 42607001. The reversal of 42606990 is 9960624.

42606990 is a `hidden beast` number, since 42 + 606 + 9 + 9 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 236616 + ... + 236795.

It is an arithmetic number, because the mean of its divisors is an integer number (4615767).

Almost surely, 2^42606990 is an apocalyptic number.

42606990 is an abundant number, since it is smaller than the sum of its proper divisors (68171418).

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

42606990 is a wasteful number, since it uses less digits than its factorization.

42606990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473424 (or 473421 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 42606990 is about 6527.4030057903. The cubic root of 42606990 is about 349.2691962243.

The spelling of 42606990 in words is "forty-two million, six hundred six thousand, nine hundred ninety".