1938482154 has 48 divisors (see below), whose sum is σ = 5082412608. Its totient is φ = 521271936.

The previous prime is 1938482129. The next prime is 1938482179. The reversal of 1938482154 is 4512848391.

1938482154 is a `hidden beast` number, since 19 + 3 + 8 + 482 + 154 = 666.

It is an interprime number because it is at equal distance from previous prime (1938482129) and next prime (1938482179).

It is a super-2 number, since 2×1938482154² = 7515426122752959432, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 450352 + ... + 454635.

It is an arithmetic number, because the mean of its divisors is an integer number (105883596).

Almost surely, 2^1938482154 is an apocalyptic number.

1938482154 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1938482154 is an abundant number, since it is smaller than the sum of its proper divisors (3143930454).

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

1938482154 is a wasteful number, since it uses less digits than its factorization.

1938482154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905019 (or 905016 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 1938482154 is about 44028.1972603921. The cubic root of 1938482154 is about 1246.8683536382.

The spelling of 1938482154 in words is "one billion, nine hundred thirty-eight million, four hundred eighty-two thousand, one hundred fifty-four".