1420460761 has 4 divisors (see below), whose sum is σ = 1421082532. Its totient is φ = 1419838992.

The previous prime is 1420460689. The next prime is 1420460779. The reversal of 1420460761 is 1670640241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1670640241 = 1201 ⋅1391041.

It can be written as a sum of positive squares in 2 ways, for example, as 1028420761 + 392040000 = 32069^2 + 19800^2 .

It is a cyclic number.

It is not a de Polignac number, because 1420460761 - 2¹¹ = 1420458713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1420464761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307446 + ... + 312031.

It is an arithmetic number, because the mean of its divisors is an integer number (355270633).

Almost surely, 2^1420460761 is an apocalyptic number.

It is an amenable number.

1420460761 is a deficient number, since it is larger than the sum of its proper divisors (621771).

1420460761 is an equidigital number, since it uses as much as digits as its factorization.

1420460761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621770.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 1420460761 is about 37689.0005306588. Note that the first 3 decimals coincide. The cubic root of 1420460761 is about 1124.1124221611.

The spelling of 1420460761 in words is "one billion, four hundred twenty million, four hundred sixty thousand, seven hundred sixty-one".