1420743264 has 36 divisors (see below), whose sum is σ = 3730420764. Its totient is φ = 473457984.

The previous prime is 1420743257. The next prime is 1420743271. The reversal of 1420743264 is 4623470241.

It is an interprime number because it is at equal distance from previous prime (1420743257) and next prime (1420743271).

It is a super-2 number, since 2×1420743264² = 4037022844402747392, 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 5 ways as a sum of consecutive naturals, for example, 367389 + ... + 371235.

It is an arithmetic number, because the mean of its divisors is an integer number (103622799).

Almost surely, 2^1420743264 is an apocalyptic number.

It is an amenable number.

1420743264 is an abundant number, since it is smaller than the sum of its proper divisors (2309677500).

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

1420743264 is an frugal number, since it uses more digits than its factorization.

1420743264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7707 (or 3852 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 1420743264 is about 37692.7481619475. The cubic root of 1420743264 is about 1124.1869388462.

The spelling of 1420743264 in words is "one billion, four hundred twenty million, seven hundred forty-three thousand, two hundred sixty-four".