1420667460 has 36 divisors (see below), whose sum is σ = 4309358508. Its totient is φ = 378844608.

The previous prime is 1420667419. The next prime is 1420667461. The reversal of 1420667460 is 647660241.

It can be written as a sum of positive squares in 2 ways, for example, as 1117698624 + 302968836 = 33432^2 + 17406^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1420667461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3946119 + ... + 3946478.

It is an arithmetic number, because the mean of its divisors is an integer number (119704403).

Almost surely, 2^1420667460 is an apocalyptic number.

1420667460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1420667460 is an abundant number, since it is smaller than the sum of its proper divisors (2888691048).

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

1420667460 is a wasteful number, since it uses less digits than its factorization.

1420667460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7892612 (or 7892607 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 1420667460 is about 37691.7425970198. The cubic root of 1420667460 is about 1124.1669447617.

The spelling of 1420667460 in words is "one billion, four hundred twenty million, six hundred sixty-seven thousand, four hundred sixty".