40066770 has 32 divisors (see below), whose sum is σ = 96329088. Its totient is φ = 10665728.

The previous prime is 40066753. The next prime is 40066783. The reversal of 40066770 is 7766004.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28627 + ... + 29993.

It is an arithmetic number, because the mean of its divisors is an integer number (3010284).

Almost surely, 2^40066770 is an apocalyptic number.

40066770 is an abundant number, since it is smaller than the sum of its proper divisors (56262318).

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

40066770 is a wasteful number, since it uses less digits than its factorization.

40066770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2354.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 40066770 is about 6329.8317513185. The cubic root of 40066770 is about 342.1853753751.

The spelling of 40066770 in words is "forty million, sixty-six thousand, seven hundred seventy".