1423304090 has 32 divisors (see below), whose sum is σ = 2921320080. Its totient is φ = 494613504.

The previous prime is 1423304089. The next prime is 1423304159. The reversal of 1423304090 is 904033241.

It can be written as a sum of positive squares in 8 ways, for example, as 946362169 + 476941921 = 30763^2 + 21839^2 .

It is a super-2 number, since 2×1423304090² = 4051589065221456200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

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 15 ways as a sum of consecutive naturals, for example, 319805 + ... + 324224.

Almost surely, 2^1423304090 is an apocalyptic number.

1423304090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1423304090 is an abundant number, since it is smaller than the sum of its proper divisors (1498015990).

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

1423304090 is a wasteful number, since it uses less digits than its factorization.

1423304090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644066.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 1423304090 is about 37726.7026123408. The cubic root of 1423304090 is about 1124.8619656157.

The spelling of 1423304090 in words is "one billion, four hundred twenty-three million, three hundred four thousand, ninety".