238649037 has 16 divisors (see below), whose sum is σ = 347492160. Its totient is φ = 144483200.

The previous prime is 238649027. The next prime is 238649053. The reversal of 238649037 is 730946832.

It is a cyclic number.

It is not a de Polignac number, because 238649037 - 2¹⁹ = 238124749 is a prime.

It is a super-2 number, since 2×238649037² = 113906725722054738, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 238649037.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238649017) 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, 33337 + ... + 39857.

It is an arithmetic number, because the mean of its divisors is an integer number (21718260).

Almost surely, 2^238649037 is an apocalyptic number.

It is an amenable number.

238649037 is a deficient number, since it is larger than the sum of its proper divisors (108843123).

238649037 is a wasteful number, since it uses less digits than its factorization.

238649037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7644.

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 238649037 is about 15448.2697089350. The cubic root of 238649037 is about 620.2782630576.

The spelling of 238649037 in words is "two hundred thirty-eight million, six hundred forty-nine thousand, thirty-seven".