40000653 has 48 divisors (see below), whose sum is σ = 72648576. Its totient is φ = 20603520.

The previous prime is 40000651. The next prime is 40000669. The reversal of 40000653 is 35600004.

It is a happy number.

It is not a de Polignac number, because 40000653 - 2¹ = 40000651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40000651) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 136375 + ... + 136667.

It is an arithmetic number, because the mean of its divisors is an integer number (1513512).

Almost surely, 2^40000653 is an apocalyptic number.

It is an amenable number.

40000653 is a deficient number, since it is larger than the sum of its proper divisors (32647923).

40000653 is a wasteful number, since it uses less digits than its factorization.

40000653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514 (or 511 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 40000653 is about 6324.6069443089. The cubic root of 40000653 is about 341.9970503490.

Adding to 40000653 its reverse (35600004), we get a palindrome (75600657).

The spelling of 40000653 in words is "forty million, six hundred fifty-three", and thus it is an aban number.