438158061 has 36 divisors (see below), whose sum is σ = 718157440. Its totient is φ = 256964400.

The previous prime is 438158029. The next prime is 438158093. The reversal of 438158061 is 160851834.

It is an interprime number because it is at equal distance from previous prime (438158029) and next prime (438158093).

It is not a de Polignac number, because 438158061 - 2⁵ = 438158029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438159061) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 27270 + ... + 40248.

Almost surely, 2^438158061 is an apocalyptic number.

It is an amenable number.

438158061 is a deficient number, since it is larger than the sum of its proper divisors (279999379).

438158061 is a wasteful number, since it uses less digits than its factorization.

438158061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13038 (or 13024 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 438158061 is about 20932.2254191952. The cubic root of 438158061 is about 759.5276733926.

The spelling of 438158061 in words is "four hundred thirty-eight million, one hundred fifty-eight thousand, sixty-one".