42151664 has 10 divisors (see below), whose sum is σ = 81668880. Its totient is φ = 21075824.

The previous prime is 42151657. The next prime is 42151667. The reversal of 42151664 is 46615124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42151667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1317224 + ... + 1317255.

It is an arithmetic number, because the mean of its divisors is an integer number (8166888).

Almost surely, 2^42151664 is an apocalyptic number.

It is an amenable number.

42151664 is a deficient number, since it is larger than the sum of its proper divisors (39517216).

42151664 is a wasteful number, since it uses less digits than its factorization.

42151664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2634487 (or 2634481 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 42151664 is about 6492.4312857357. The cubic root of 42151664 is about 348.0205651299.

Adding to 42151664 its reverse (46615124), we get a palindrome (88766788).

The spelling of 42151664 in words is "forty-two million, one hundred fifty-one thousand, six hundred sixty-four".