42007455 has 36 divisors (see below), whose sum is σ = 84705192. Its totient is φ = 19202400.

The previous prime is 42007397. The next prime is 42007463. The reversal of 42007455 is 55470024.

42007455 is a `hidden beast` number, since 4 + 200 + 7 + 455 = 666.

It is not a de Polignac number, because 42007455 - 2²¹ = 39910303 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7321 + ... + 11730.

It is an arithmetic number, because the mean of its divisors is an integer number (2352922).

Almost surely, 2^42007455 is an apocalyptic number.

42007455 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42007455 is an abundant number, since it is smaller than the sum of its proper divisors (42697737).

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

42007455 is a wasteful number, since it uses less digits than its factorization.

42007455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19076 (or 19066 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 42007455 is about 6481.3158386241. The cubic root of 42007455 is about 347.6232297629.

Adding to 42007455 its reverse (55470024), we get a palindrome (97477479).

The spelling of 42007455 in words is "forty-two million, seven thousand, four hundred fifty-five".