1420743555 has 96 divisors (see below), whose sum is σ = 3080083968. Its totient is φ = 588556800.

The previous prime is 1420743529. The next prime is 1420743559. The reversal of 1420743555 is 5553470241.

1420743555 is a `hidden beast` number, since 14 + 20 + 74 + 3 + 555 = 666.

1420743555 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1420743555 - 2⁶ = 1420743491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1420743559) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1804872 + ... + 1805658.

It is an arithmetic number, because the mean of its divisors is an integer number (32084208).

Almost surely, 2^1420743555 is an apocalyptic number.

1420743555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1420743555 is an abundant number, since it is smaller than the sum of its proper divisors (1659340413).

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

1420743555 is a wasteful number, since it uses less digits than its factorization.

1420743555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337 (or 1334 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 36.

The square root of 1420743555 is about 37692.7520221063. The cubic root of 1420743555 is about 1124.1870155990.

The spelling of 1420743555 in words is "one billion, four hundred twenty million, seven hundred forty-three thousand, five hundred fifty-five".