1421865734 has 8 divisors (see below), whose sum is σ = 2148366888. Its totient is φ = 705743440.

The previous prime is 1421865733. The next prime is 1421865751. The reversal of 1421865734 is 4375681241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1421865691 and 1421865700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421865733) 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, 2594372 + ... + 2594919.

It is an arithmetic number, because the mean of its divisors is an integer number (268545861).

Almost surely, 2^1421865734 is an apocalyptic number.

1421865734 is a deficient number, since it is larger than the sum of its proper divisors (726501154).

1421865734 is a wasteful number, since it uses less digits than its factorization.

1421865734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5189430.

The product of its digits is 161280, while the sum is 41.

The square root of 1421865734 is about 37707.6349563321. The cubic root of 1421865734 is about 1124.4829186513.

The spelling of 1421865734 in words is "one billion, four hundred twenty-one million, eight hundred sixty-five thousand, seven hundred thirty-four".