40765986 has 12 divisors (see below), whose sum is σ = 88326342. Its totient is φ = 13588656.

The previous prime is 40765951. The next prime is 40765987. The reversal of 40765986 is 68956704.

It can be written as a sum of positive squares in only one way, i.e., 39125025 + 1640961 = 6255^2 + 1281^2 .

It is a super-2 number, since 2×40765986² = 3323731229104392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40765987) 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, 1132371 + ... + 1132406.

Almost surely, 2^40765986 is an apocalyptic number.

40765986 is an abundant number, since it is smaller than the sum of its proper divisors (47560356).

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

40765986 is a wasteful number, since it uses less digits than its factorization.

40765986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2264785 (or 2264782 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 40765986 is about 6384.8246647813. The cubic root of 40765986 is about 344.1644303594.

The spelling of 40765986 in words is "forty million, seven hundred sixty-five thousand, nine hundred eighty-six".