1402400003 has 4 divisors (see below), whose sum is σ = 1411003848. Its totient is φ = 1393796160.

The previous prime is 1402399963. The next prime is 1402400029. The reversal of 1402400003 is 3000042041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3000042041 = 349 ⋅8596109.

It is a cyclic number.

It is not a de Polignac number, because 1402400003 - 2¹⁶ = 1402334467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1402400033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4301678 + ... + 4302003.

It is an arithmetic number, because the mean of its divisors is an integer number (352750962).

Almost surely, 2^1402400003 is an apocalyptic number.

1402400003 is a deficient number, since it is larger than the sum of its proper divisors (8603845).

1402400003 is an equidigital number, since it uses as much as digits as its factorization.

1402400003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8603844.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 1402400003 is about 37448.6315237286. The cubic root of 1402400003 is about 1119.3278287649.

Adding to 1402400003 its reverse (3000042041), we get a palindrome (4402442044).

The spelling of 1402400003 in words is "one billion, four hundred two million, four hundred thousand, three".