1421923652 has 24 divisors (see below), whose sum is σ = 2537476032.
Its totient is φ = 697068000.
The previous prime is 1421923637. The next prime is 1421923693. The reversal of 1421923652 is 2563291241.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24527 + ... + 58697.
It is an arithmetic number, because the mean of its divisors is an integer number (105728168).
Almost surely, 21421923652 is an apocalyptic number.
It is an amenable number.
1421923652 is a deficient number, since it is larger than the sum of its proper divisors (1115552380).
1421923652 is a wasteful number, since it uses less digits than its factorization.
1421923652 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 34379 (or 34377 counting only the distinct ones).
The product of its digits is 25920, while the sum is 35.
The square root of 1421923652 is about 37708.4029362157.
The cubic root of 1421923652 is about 1124.4981865995.
The spelling of 1421923652 in words is "one billion, four hundred twenty-one million, nine hundred twenty-three thousand, six hundred fifty-two".