1348999920 has 140 divisors (see below), whose sum is σ = 4702689336. Its totient is φ = 359717760.

The previous prime is 1348999907. The next prime is 1348999973. The reversal of 1348999920 is 299998431.

It is a super-3 number, since 3×1348999920³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 46755 + ... + 69885.

Almost surely, 2^1348999920 is an apocalyptic number.

1348999920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1348999920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2351344668).

1348999920 is an abundant number, since it is smaller than the sum of its proper divisors (3353689416).

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

1348999920 is an equidigital number, since it uses as much as digits as its factorization.

1348999920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23162 (or 23141 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 54.

The square root of 1348999920 is about 36728.7342553484. The cubic root of 1348999920 is about 1104.9364691196.

The spelling of 1348999920 in words is "one billion, three hundred forty-eight million, nine hundred ninety-nine thousand, nine hundred twenty".