1420142403 has 32 divisors (see below), whose sum is σ = 2034869760. Its totient is φ = 878307840.

The previous prime is 1420142369. The next prime is 1420142419. The reversal of 1420142403 is 3042410241.

It is not a de Polignac number, because 1420142403 - 2¹⁰ = 1420141379 is a prime.

It is a super-2 number, since 2×1420142403² = 4033608889597228818, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1420142403.

It is not an unprimeable number, because it can be changed into a prime (1420142903) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 913675 + ... + 915227.

It is an arithmetic number, because the mean of its divisors is an integer number (63589680).

Almost surely, 2^1420142403 is an apocalyptic number.

1420142403 is a deficient number, since it is larger than the sum of its proper divisors (614727357).

1420142403 is a wasteful number, since it uses less digits than its factorization.

1420142403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1899.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1420142403 is about 37684.7768070875. The cubic root of 1420142403 is about 1124.0284360511.

Adding to 1420142403 its reverse (3042410241), we get a palindrome (4462552644).

The spelling of 1420142403 in words is "one billion, four hundred twenty million, one hundred forty-two thousand, four hundred three".