1420776672 has 48 divisors (see below), whose sum is σ = 4262332032. Its totient is φ = 405936000.

The previous prime is 1420776647. The next prime is 1420776691. The reversal of 1420776672 is 2766770241.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-3 number, since 3×1420776672³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1056454 + ... + 1057797.

It is an arithmetic number, because the mean of its divisors is an integer number (88798584).

Almost surely, 2^1420776672 is an apocalyptic number.

1420776672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1420776672 is an abundant number, since it is smaller than the sum of its proper divisors (2841555360).

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

1420776672 is a wasteful number, since it uses less digits than its factorization.

1420776672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2114271 (or 2114263 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 42.

The square root of 1420776672 is about 37693.1913215106. The cubic root of 1420776672 is about 1124.1957503239.

The spelling of 1420776672 in words is "one billion, four hundred twenty million, seven hundred seventy-six thousand, six hundred seventy-two".