42051488 has 12 divisors (see below), whose sum is σ = 82788930. Its totient is φ = 21025728.

The previous prime is 42051487. The next prime is 42051491. The reversal of 42051488 is 88415024.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 29463184 + 12588304 = 5428^2 + 3548^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 1314109 = 42051488 / (4 + 2 + 0 + 5 + 1 + 4 + 8 + 8).

It is not an unprimeable number, because it can be changed into a prime (42051487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657023 + ... + 657086.

Almost surely, 2^42051488 is an apocalyptic number.

It is an amenable number.

42051488 is a deficient number, since it is larger than the sum of its proper divisors (40737442).

42051488 is a wasteful number, since it uses less digits than its factorization.

42051488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314119 (or 1314111 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 42051488 is about 6484.7118671534. The cubic root of 42051488 is about 347.7446490718.

The spelling of 42051488 in words is "forty-two million, fifty-one thousand, four hundred eighty-eight".