42661084 has 24 divisors (see below), whose sum is σ = 77616000. Its totient is φ = 20495040.

The previous prime is 42661079. The next prime is 42661103. The reversal of 42661084 is 48016624.

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 17322 + ... + 19630.

It is an arithmetic number, because the mean of its divisors is an integer number (3234000).

Almost surely, 2^42661084 is an apocalyptic number.

It is an amenable number.

42661084 is a deficient number, since it is larger than the sum of its proper divisors (34954916).

42661084 is a wasteful number, since it uses less digits than its factorization.

42661084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2493 (or 2491 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 42661084 is about 6531.5452995444. The cubic root of 42661084 is about 349.4169448906.

The spelling of 42661084 in words is "forty-two million, six hundred sixty-one thousand, eighty-four".