1423432004 has 12 divisors (see below), whose sum is σ = 2599310784. Its totient is φ = 680771784.

The previous prime is 1423432001. The next prime is 1423432009. The reversal of 1423432004 is 4002343241.

It is a super-2 number, since 2×1423432004² = 4052317340022912032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (1423432001) 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, 7735952 + ... + 7736135.

It is an arithmetic number, because the mean of its divisors is an integer number (216609232).

Almost surely, 2^1423432004 is an apocalyptic number.

It is an amenable number.

1423432004 is a deficient number, since it is larger than the sum of its proper divisors (1175878780).

1423432004 is a wasteful number, since it uses less digits than its factorization.

1423432004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15472114 (or 15472112 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 1423432004 is about 37728.3978456547. The cubic root of 1423432004 is about 1124.8956621589.

Adding to 1423432004 its reverse (4002343241), we get a palindrome (5425775245).

The spelling of 1423432004 in words is "one billion, four hundred twenty-three million, four hundred thirty-two thousand, four".