1405142422 has 4 divisors (see below), whose sum is σ = 2107713636. Its totient is φ = 702571210.

The previous prime is 1405142411. The next prime is 1405142443. The reversal of 1405142422 is 2242415041.

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

It is a super-2 number, since 2×1405142422² = 3948850452208052168, which contains 22 as substring.

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, 351285604 + ... + 351285607.

It is an arithmetic number, because the mean of its divisors is an integer number (526928409).

Almost surely, 2^1405142422 is an apocalyptic number.

1405142422 is a deficient number, since it is larger than the sum of its proper divisors (702571214).

1405142422 is an equidigital number, since it uses as much as digits as its factorization.

1405142422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702571213.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 1405142422 is about 37485.2293843855. The cubic root of 1405142422 is about 1120.0569757367.

Adding to 1405142422 its reverse (2242415041), we get a palindrome (3647557463).

The spelling of 1405142422 in words is "one billion, four hundred five million, one hundred forty-two thousand, four hundred twenty-two".