42661026 has 32 divisors (see below), whose sum is σ = 95054400. Its totient is φ = 14182560.

The previous prime is 42660983. The next prime is 42661039. The reversal of 42661026 is 62016624.

It is a happy number.

42661026 is a `hidden beast` number, since 4 + 26 + 610 + 26 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25710 + ... + 27318.

It is an arithmetic number, because the mean of its divisors is an integer number (2970450).

Almost surely, 2^42661026 is an apocalyptic number.

42661026 is an abundant number, since it is smaller than the sum of its proper divisors (52393374).

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

42661026 is a wasteful number, since it uses less digits than its factorization.

42661026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111 (or 2105 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 42661026 is about 6531.5408595522. The cubic root of 42661026 is about 349.4167865402.

The spelling of 42661026 in words is "forty-two million, six hundred sixty-one thousand, twenty-six".