1421746345 has 16 divisors (see below), whose sum is σ = 1796855040. Its totient is φ = 1076955264.

The previous prime is 1421746303. The next prime is 1421746379. The reversal of 1421746345 is 5436471241.

It is not a de Polignac number, because 1421746345 - 2²¹ = 1419649193 is a prime.

1421746345 is a Rhonda number in base 10.

Its product of digits (80640) is a multiple of the sum of its prime divisors (8064).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275509 + ... + 280621.

It is an arithmetic number, because the mean of its divisors is an integer number (112303440).

Almost surely, 2^1421746345 is an apocalyptic number.

It is an amenable number.

1421746345 is a deficient number, since it is larger than the sum of its proper divisors (375108695).

1421746345 is a wasteful number, since it uses less digits than its factorization.

1421746345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8064.

The product of its digits is 80640, while the sum is 37.

The square root of 1421746345 is about 37706.0518352161. The cubic root of 1421746345 is about 1124.4514448288.

The spelling of 1421746345 in words is "one billion, four hundred twenty-one million, seven hundred forty-six thousand, three hundred forty-five".