1423266880 has 56 divisors (see below), whose sum is σ = 3873325248. Its totient is φ = 487976448.

The previous prime is 1423266857. The next prime is 1423266881. The reversal of 1423266880 is 886623241.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×1423266880² = 4051377223409868800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (1423266881) 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, 315454 + ... + 319933.

Almost surely, 2^1423266880 is an apocalyptic number.

1423266880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1423266880 is an abundant number, since it is smaller than the sum of its proper divisors (2450058368).

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

1423266880 is an equidigital number, since it uses as much as digits as its factorization.

1423266880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635411 (or 635401 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 1423266880 is about 37726.2094570870. The cubic root of 1423266880 is about 1124.8521629603.

The spelling of 1423266880 in words is "one billion, four hundred twenty-three million, two hundred sixty-six thousand, eight hundred eighty".