42408735 has 16 divisors (see below), whose sum is σ = 68056800. Its totient is φ = 22550400.

The previous prime is 42408733. The next prime is 42408749. The reversal of 42408735 is 53780424.

It is not a de Polignac number, because 42408735 - 2¹ = 42408733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42408696 and 42408705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42408733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1185 + ... + 9285.

It is an arithmetic number, because the mean of its divisors is an integer number (4253550).

Almost surely, 2^42408735 is an apocalyptic number.

42408735 is a deficient number, since it is larger than the sum of its proper divisors (25648065).

42408735 is a wasteful number, since it uses less digits than its factorization.

42408735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8458.

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 42408735 is about 6512.1989373790. The cubic root of 42408735 is about 348.7266245044.

It can be divided in two parts, 42 and 408735, that multiplied together give a triangular number (17166870 = T₅₈₅₉).

The spelling of 42408735 in words is "forty-two million, four hundred eight thousand, seven hundred thirty-five".