1403428032 has 336 divisors, whose sum is σ = 4473391104. Its totient is φ = 435456000.

The previous prime is 1403428009. The next prime is 1403428051. The reversal of 1403428032 is 2308243041.

It is a super-2 number, since 2×1403428032² = 3939220482006786048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1403427987 and 1403428005.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19766557 + ... + 19766627.

It is an arithmetic number, because the mean of its divisors is an integer number (13313664).

Almost surely, 2^1403428032 is an apocalyptic number.

1403428032 is a gapful number since it is divisible by the number (12) 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 1403428032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2236695552).

1403428032 is an abundant number, since it is smaller than the sum of its proper divisors (3069963072).

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

1403428032 is an equidigital number, since it uses as much as digits as its factorization.

1403428032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 1403428032 is about 37462.3548645837. The cubic root of 1403428032 is about 1119.6012696298.

The spelling of 1403428032 in words is "one billion, four hundred three million, four hundred twenty-eight thousand, thirty-two".