42496660 has 24 divisors (see below), whose sum is σ = 92123136. Its totient is φ = 16450080.

The previous prime is 42496639. The next prime is 42496661. The reversal of 42496660 is 6669424.

It is a super-2 number, since 2×42496660² = 3611932222311200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42496661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33652 + ... + 34891.

It is an arithmetic number, because the mean of its divisors is an integer number (3838464).

Almost surely, 2^42496660 is an apocalyptic number.

It is an amenable number.

42496660 is an abundant number, since it is smaller than the sum of its proper divisors (49626476).

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

42496660 is a wasteful number, since it uses less digits than its factorization.

42496660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68583 (or 68581 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 42496660 is about 6518.9462338633. The cubic root of 42496660 is about 348.9674602875.

The spelling of 42496660 in words is "forty-two million, four hundred ninety-six thousand, six hundred sixty".