40783653 has 6 divisors (see below), whose sum is σ = 58909734. Its totient is φ = 27189096.

The previous prime is 40783649. The next prime is 40783661. The reversal of 40783653 is 35638704.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 28547649 + 12236004 = 5343^2 + 3498^2 .

It is not a de Polignac number, because 40783653 - 2² = 40783649 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40783453) 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, 2265750 + ... + 2265767.

It is an arithmetic number, because the mean of its divisors is an integer number (9818289).

Almost surely, 2^40783653 is an apocalyptic number.

It is an amenable number.

40783653 is a deficient number, since it is larger than the sum of its proper divisors (18126081).

40783653 is a wasteful number, since it uses less digits than its factorization.

40783653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4531523 (or 4531520 counting only the distinct ones).

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

The square root of 40783653 is about 6386.2080298092. The cubic root of 40783653 is about 344.2141407138.

The spelling of 40783653 in words is "forty million, seven hundred eighty-three thousand, six hundred fifty-three".