1402543742 has 4 divisors (see below), whose sum is σ = 2103815616. Its totient is φ = 701271870.

The previous prime is 1402543739. The next prime is 1402543799. The reversal of 1402543742 is 2473452041.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 1402543699 and 1402543708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350635934 + ... + 350635937.

It is an arithmetic number, because the mean of its divisors is an integer number (525953904).

Almost surely, 2^1402543742 is an apocalyptic number.

1402543742 is a deficient number, since it is larger than the sum of its proper divisors (701271874).

1402543742 is an equidigital number, since it uses as much as digits as its factorization.

1402543742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701271873.

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 1402543742 is about 37450.5506234555. The cubic root of 1402543742 is about 1119.3660692968.

Adding to 1402543742 its reverse (2473452041), we get a palindrome (3875995783).

The spelling of 1402543742 in words is "one billion, four hundred two million, five hundred forty-three thousand, seven hundred forty-two".