1403430 has 64 divisors (see below), whose sum is σ = 3967488. Its totient is φ = 311040.

The previous prime is 1403429. The next prime is 1403443. The reversal of 1403430 is 343041.

1403430 = T₄₁ + T₄₂ + ... + T₂₀₃.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8529 + ... + 8691.

It is an arithmetic number, because the mean of its divisors is an integer number (61992).

2^1403430 is an apocalyptic number.

1403430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1403430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1983744).

1403430 is an abundant number, since it is smaller than the sum of its proper divisors (2564058).

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

1403430 is a wasteful number, since it uses less digits than its factorization.

1403430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 1403430 is about 1184.6645094709. The cubic root of 1403430 is about 111.9601792961.

Adding to 1403430 its reverse (343041), we get a palindrome (1746471).

It can be divided in two parts, 140 and 3430, that added together give a triangular number (3570 = T₈₄).

The spelling of 1403430 in words is "one million, four hundred three thousand, four hundred thirty".