1406423756 has 12 divisors (see below), whose sum is σ = 2469007968. Its totient is φ = 700992912.

The previous prime is 1406423699. The next prime is 1406423771. The reversal of 1406423756 is 6573246041.

It is a happy number.

It is a super-2 number, since 2×1406423756² = 3956055562882295072, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

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, 553316 + ... + 555851.

It is an arithmetic number, because the mean of its divisors is an integer number (205750664).

Almost surely, 2^1406423756 is an apocalyptic number.

It is an amenable number.

1406423756 is a deficient number, since it is larger than the sum of its proper divisors (1062584212).

1406423756 is a wasteful number, since it uses less digits than its factorization.

1406423756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109488 (or 1109486 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 1406423756 is about 37502.3166751069. The cubic root of 1406423756 is about 1120.3973282034.

Adding to 1406423756 its reverse (6573246041), we get a palindrome (7979669797).

The spelling of 1406423756 in words is "one billion, four hundred six million, four hundred twenty-three thousand, seven hundred fifty-six".