40363785 has 96 divisors (see below), whose sum is σ = 90397440. Its totient is φ = 16727040.

The previous prime is 40363783. The next prime is 40363787. The reversal of 40363785 is 58736304.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40363783) and next prime (40363787).

It is not a de Polignac number, because 40363785 - 2¹ = 40363783 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40363783) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 114169 + ... + 114521.

It is an arithmetic number, because the mean of its divisors is an integer number (941640).

Almost surely, 2^40363785 is an apocalyptic number.

40363785 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40363785 is the 3177-th decagonal number.

It is an amenable number.

40363785 is an abundant number, since it is smaller than the sum of its proper divisors (50033655).

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

40363785 is a wasteful number, since it uses less digits than its factorization.

40363785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396 (or 379 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 40363785 is about 6353.2499557313. The cubic root of 40363785 is about 343.0288347668.

The spelling of 40363785 in words is "forty million, three hundred sixty-three thousand, seven hundred eighty-five".