40284790 has 32 divisors (see below), whose sum is σ = 89248320. Its totient is φ = 12749184.

The previous prime is 40284773. The next prime is 40284791. The reversal of 40284790 is 9748204.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40284791) 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, 21225 + ... + 23044.

It is an arithmetic number, because the mean of its divisors is an integer number (2789010).

Almost surely, 2^40284790 is an apocalyptic number.

40284790 is an abundant number, since it is smaller than the sum of its proper divisors (48963530).

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

40284790 is a wasteful number, since it uses less digits than its factorization.

40284790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44296.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 40284790 is about 6347.0300141090. The cubic root of 40284790 is about 342.8049107766.

The spelling of 40284790 in words is "forty million, two hundred eighty-four thousand, seven hundred ninety".