1423428855 has 32 divisors (see below), whose sum is σ = 2309188608. Its totient is φ = 748656000.

The previous prime is 1423428841. The next prime is 1423428883. The reversal of 1423428855 is 5588243241.

It is not a de Polignac number, because 1423428855 - 2⁸ = 1423428599 is a prime.

It is a super-2 number, since 2×1423428855² = 4052299410493222050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 408832 + ... + 412298.

It is an arithmetic number, because the mean of its divisors is an integer number (72162144).

Almost surely, 2^1423428855 is an apocalyptic number.

1423428855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1423428855 is a deficient number, since it is larger than the sum of its proper divisors (885759753).

1423428855 is a wasteful number, since it uses less digits than its factorization.

1423428855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3847.

The product of its digits is 307200, while the sum is 42.

The square root of 1423428855 is about 37728.3561131412. The cubic root of 1423428855 is about 1124.8948326382.

The spelling of 1423428855 in words is "one billion, four hundred twenty-three million, four hundred twenty-eight thousand, eight hundred fifty-five".