42027040 has 48 divisors (see below), whose sum is σ = 108319680. Its totient is φ = 15281920.

The previous prime is 42027019. The next prime is 42027059. The reversal of 42027040 is 4072024.

42027040 = 847² + 848² + ... + 901².

It is a junction number, because it is equal to n+sod(n) for n = 42026999 and 42027017.

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, 10180 + ... + 13699.

It is an arithmetic number, because the mean of its divisors is an integer number (2256660).

Almost surely, 2^42027040 is an apocalyptic number.

42027040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42027040 is an abundant number, since it is smaller than the sum of its proper divisors (66292640).

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

42027040 is a wasteful number, since it uses less digits than its factorization.

42027040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23905 (or 23897 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 42027040 is about 6482.8265440315. The cubic root of 42027040 is about 347.6772451210.

Adding to 42027040 its reverse (4072024), we get a palindrome (46099064).

The spelling of 42027040 in words is "forty-two million, twenty-seven thousand, forty".