40285100 has 18 divisors (see below), whose sum is σ = 87418884. Its totient is φ = 16114000.

The previous prime is 40285099. The next prime is 40285103. The reversal of 40285100 is 158204.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (40285103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 201326 + ... + 201525.

Almost surely, 2^40285100 is an apocalyptic number.

It is an amenable number.

40285100 is an abundant number, since it is smaller than the sum of its proper divisors (47133784).

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

40285100 is a wasteful number, since it uses less digits than its factorization.

40285100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402865 (or 402858 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 40285100 is about 6347.0544349328. The cubic root of 40285100 is about 342.8057900932.

The spelling of 40285100 in words is "forty million, two hundred eighty-five thousand, one hundred".