438045261 has 8 divisors (see below), whose sum is σ = 604200480. Its totient is φ = 281960112.

The previous prime is 438045253. The next prime is 438045269. The reversal of 438045261 is 162540834.

It is an interprime number because it is at equal distance from previous prime (438045253) and next prime (438045269).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 438045261 - 2³ = 438045253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438045269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2517415 + ... + 2517588.

It is an arithmetic number, because the mean of its divisors is an integer number (75525060).

Almost surely, 2^438045261 is an apocalyptic number.

It is an amenable number.

438045261 is a deficient number, since it is larger than the sum of its proper divisors (166155219).

438045261 is a wasteful number, since it uses less digits than its factorization.

438045261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5035035.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 438045261 is about 20929.5308356399. The cubic root of 438045261 is about 759.4624898570.

The spelling of 438045261 in words is "four hundred thirty-eight million, forty-five thousand, two hundred sixty-one".