1406278042 has 8 divisors (see below), whose sum is σ = 2271679956. Its totient is φ = 649051392.

The previous prime is 1406278037. The next prime is 1406278087. The reversal of 1406278042 is 2408726041.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1406175001 + 103041 = 37499^2 + 321^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1406278042² = 3955235862822707528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1406277989 and 1406278007.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27043783 + ... + 27043834.

Almost surely, 2^1406278042 is an apocalyptic number.

1406278042 is a deficient number, since it is larger than the sum of its proper divisors (865401914).

1406278042 is a wasteful number, since it uses less digits than its factorization.

1406278042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54087632.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 1406278042 is about 37500.3738914694. The cubic root of 1406278042 is about 1120.3586335558.

The spelling of 1406278042 in words is "one billion, four hundred six million, two hundred seventy-eight thousand, forty-two".