38540635 has 16 divisors (see below), whose sum is σ = 53496576. Its totient is φ = 26107488.

The previous prime is 38540633. The next prime is 38540639. The reversal of 38540635 is 53604583.

It is a cyclic number.

It is not a de Polignac number, because 38540635 - 2¹ = 38540633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38540635.

It is not an unprimeable number, because it can be changed into a prime (38540633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3729 + ... + 9538.

It is an arithmetic number, because the mean of its divisors is an integer number (3343536).

Almost surely, 2^38540635 is an apocalyptic number.

38540635 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

38540635 is a deficient number, since it is larger than the sum of its proper divisors (14955941).

38540635 is a wasteful number, since it uses less digits than its factorization.

38540635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13362.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 38540635 is about 6208.1104210541. The cubic root of 38540635 is about 337.7844259866.

The spelling of 38540635 in words is "thirty-eight million, five hundred forty thousand, six hundred thirty-five".