1420553434 has 4 divisors (see below), whose sum is σ = 2130830154. Its totient is φ = 710276716.

The previous prime is 1420553423. The next prime is 1420553447. The reversal of 1420553434 is 4343550241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4343550241 = 127 ⋅34201183.

It can be written as a sum of positive squares in only one way, i.e., 1402277809 + 18275625 = 37447^2 + 4275^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1420553396 and 1420553405.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355138357 + ... + 355138360.

Almost surely, 2^1420553434 is an apocalyptic number.

1420553434 is a deficient number, since it is larger than the sum of its proper divisors (710276720).

1420553434 is an equidigital number, since it uses as much as digits as its factorization.

1420553434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710276719.

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 1420553434 is about 37690.2299541937. The cubic root of 1420553434 is about 1124.1368678922.

The spelling of 1420553434 in words is "one billion, four hundred twenty million, five hundred fifty-three thousand, four hundred thirty-four".