42408036 has 120 divisors (see below), whose sum is σ = 123350304. Its totient is φ = 12597120.

The previous prime is 42408029. The next prime is 42408049. The reversal of 42408036 is 63080424.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 260091 + ... + 260253.

Almost surely, 2^42408036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42408036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61675152).

42408036 is an abundant number, since it is smaller than the sum of its proper divisors (80942268).

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

42408036 is a wasteful number, since it uses less digits than its factorization.

42408036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263 (or 252 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 42408036 is about 6512.1452686500. The cubic root of 42408036 is about 348.7247085370.

The spelling of 42408036 in words is "forty-two million, four hundred eight thousand, thirty-six".