40554765 has 24 divisors (see below), whose sum is σ = 71349408. Its totient is φ = 21304800.

The previous prime is 40554697. The next prime is 40554769. The reversal of 40554765 is 56745504.

It is a happy number.

40554765 is a `hidden beast` number, since 40 + 554 + 7 + 65 = 666.

It is not a de Polignac number, because 40554765 - 2⁹ = 40554253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40554769) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3711 + ... + 9740.

It is an arithmetic number, because the mean of its divisors is an integer number (2972892).

Almost surely, 2^40554765 is an apocalyptic number.

40554765 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40554765 is a deficient number, since it is larger than the sum of its proper divisors (30794643).

40554765 is a wasteful number, since it uses less digits than its factorization.

40554765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13529 (or 13526 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 36.

The square root of 40554765 is about 6368.2623218583. The cubic root of 40554765 is about 343.5689938515.

The spelling of 40554765 in words is "forty million, five hundred fifty-four thousand, seven hundred sixty-five".