1423369491 has 8 divisors (see below), whose sum is σ = 1898004624. Its totient is φ = 948823680.

The previous prime is 1423369481. The next prime is 1423369499. The reversal of 1423369491 is 1949633241.

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

It is not a de Polignac number, because 1423369491 - 2⁶ = 1423369427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1423369499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38631 + ... + 65871.

It is an arithmetic number, because the mean of its divisors is an integer number (237250578).

Almost surely, 2^1423369491 is an apocalyptic number.

1423369491 is a deficient number, since it is larger than the sum of its proper divisors (474635133).

1423369491 is a wasteful number, since it uses less digits than its factorization.

1423369491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44661.

The product of its digits is 139968, while the sum is 42.

The square root of 1423369491 is about 37727.5693757231. The cubic root of 1423369491 is about 1124.8791945342.

It can be divided in two parts, 142 and 3369491, that added together give a palindrome (3369633).

The spelling of 1423369491 in words is "one billion, four hundred twenty-three million, three hundred sixty-nine thousand, four hundred ninety-one".