1445999838 has 32 divisors (see below), whose sum is σ = 3127279104. Its totient is φ = 443993472.

The previous prime is 1445999833. The next prime is 1445999843. The reversal of 1445999838 is 8389995441.

It is an interprime number because it is at equal distance from previous prime (1445999833) and next prime (1445999843).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445999833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146020 + ... + 155607.

It is an arithmetic number, because the mean of its divisors is an integer number (97727472).

Almost surely, 2^1445999838 is an apocalyptic number.

1445999838 is an abundant number, since it is smaller than the sum of its proper divisors (1681279266).

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

1445999838 is a wasteful number, since it uses less digits than its factorization.

1445999838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301696.

The product of its digits is 11197440, while the sum is 60.

The square root of 1445999838 is about 38026.3045535587. The cubic root of 1445999838 is about 1130.8094125136.

The spelling of 1445999838 in words is "one billion, four hundred forty-five million, nine hundred ninety-nine thousand, eight hundred thirty-eight".