42280407 has 32 divisors (see below), whose sum is σ = 67961600. Its totient is φ = 25824096.

The previous prime is 42280393. The next prime is 42280409. The reversal of 42280407 is 70408224.

42280407 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42280407 - 2¹⁰ = 42279383 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42280409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56844 + ... + 57582.

It is an arithmetic number, because the mean of its divisors is an integer number (2123800).

Almost surely, 2^42280407 is an apocalyptic number.

42280407 is a deficient number, since it is larger than the sum of its proper divisors (25681193).

42280407 is a wasteful number, since it uses less digits than its factorization.

42280407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924 (or 918 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 42280407 is about 6502.3385793113. The cubic root of 42280407 is about 348.3745224728.

The spelling of 42280407 in words is "forty-two million, two hundred eighty thousand, four hundred seven".