1423652406 has 64 divisors (see below), whose sum is σ = 3276806400. Its totient is φ = 407808000.

The previous prime is 1423652371. The next prime is 1423652411. The reversal of 1423652406 is 6042563241.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 752710 + ... + 754598.

It is an arithmetic number, because the mean of its divisors is an integer number (51200100).

Almost surely, 2^1423652406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1423652406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1638403200).

1423652406 is an abundant number, since it is smaller than the sum of its proper divisors (1853153994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1423652406 is a wasteful number, since it uses less digits than its factorization.

1423652406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2525.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 1423652406 is about 37731.3186358494. The cubic root of 1423652406 is about 1124.9537181948.

The spelling of 1423652406 in words is "one billion, four hundred twenty-three million, six hundred fifty-two thousand, four hundred six".