38891454 has 16 divisors (see below), whose sum is σ = 88894848. Its totient is φ = 11111832.

The previous prime is 38891441. The next prime is 38891473. The reversal of 38891454 is 45419883.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 925987 = 38891454 / (3 + 8 + 8 + 9 + 1 + 4 + 5 + 4).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 462952 + ... + 463035.

It is an arithmetic number, because the mean of its divisors is an integer number (5555928).

Almost surely, 2^38891454 is an apocalyptic number.

38891454 is an abundant number, since it is smaller than the sum of its proper divisors (50003394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38891454 is a wasteful number, since it uses less digits than its factorization.

38891454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925999.

The product of its digits is 138240, while the sum is 42.

The square root of 38891454 is about 6236.3013076663. The cubic root of 38891454 is about 338.8062344971.

The spelling of 38891454 in words is "thirty-eight million, eight hundred ninety-one thousand, four hundred fifty-four".