1403928120 has 64 divisors (see below), whose sum is σ = 4813470720. Its totient is φ = 320897664.

The previous prime is 1403928091. The next prime is 1403928121. The reversal of 1403928120 is 218293041.

It is a super-2 number, since 2×1403928120² = 3942028332253468800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1403928121) by changing a digit.

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, 834832 + ... + 836511.

It is an arithmetic number, because the mean of its divisors is an integer number (75210480).

Almost surely, 2^1403928120 is an apocalyptic number.

1403928120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1403928120 is an abundant number, since it is smaller than the sum of its proper divisors (3409542600).

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

1403928120 is a wasteful number, since it uses less digits than its factorization.

1403928120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1671364 (or 1671360 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 1403928120 is about 37469.0288104723. The cubic root of 1403928120 is about 1119.7342375380.

The spelling of 1403928120 in words is "one billion, four hundred three million, nine hundred twenty-eight thousand, one hundred twenty".