1423565490 has 16 divisors (see below), whose sum is σ = 3416557248. Its totient is φ = 379617456.

The previous prime is 1423565471. The next prime is 1423565509. The reversal of 1423565490 is 945653241.

It is an interprime number because it is at equal distance from previous prime (1423565471) and next prime (1423565509).

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, 23726062 + ... + 23726121.

It is an arithmetic number, because the mean of its divisors is an integer number (213534828).

Almost surely, 2^1423565490 is an apocalyptic number.

1423565490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1423565490 is an abundant number, since it is smaller than the sum of its proper divisors (1992991758).

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

1423565490 is a wasteful number, since it uses less digits than its factorization.

1423565490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47452193.

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 1423565490 is about 37730.1668429918. The cubic root of 1423565490 is about 1124.9308243885.

The spelling of 1423565490 in words is "one billion, four hundred twenty-three million, five hundred sixty-five thousand, four hundred ninety".