1855426480 has 40 divisors (see below), whose sum is σ = 4316321952. Its totient is φ = 741748224.

The previous prime is 1855426451. The next prime is 1855426487. The reversal of 1855426480 is 846245581.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (1855426487) 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, 161404 + ... + 172516.

Almost surely, 2^1855426480 is an apocalyptic number.

1855426480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1855426480 is an abundant number, since it is smaller than the sum of its proper divisors (2460895472).

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

1855426480 is a wasteful number, since it uses less digits than its factorization.

1855426480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13213 (or 13207 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 43.

The square root of 1855426480 is about 43074.6616933900. The cubic root of 1855426480 is about 1228.8001342491.

The spelling of 1855426480 in words is "one billion, eight hundred fifty-five million, four hundred twenty-six thousand, four hundred eighty".