1406563542 has 40 divisors (see below), whose sum is σ = 3168144936. Its totient is φ = 466414848.

The previous prime is 1406563531. The next prime is 1406563549. The reversal of 1406563542 is 2453656041.

1406563542 is a `hidden beast` number, since 1 + 40 + 6 + 563 + 54 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1406563497 and 1406563506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406563549) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8773 + ... + 53759.

Almost surely, 2^1406563542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1406563542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1584072468).

1406563542 is an abundant number, since it is smaller than the sum of its proper divisors (1761581394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1406563542 is a wasteful number, since it uses less digits than its factorization.

1406563542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45194 (or 45185 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 1406563542 is about 37504.1803269982. The cubic root of 1406563542 is about 1120.4344461469.

The spelling of 1406563542 in words is "one billion, four hundred six million, five hundred sixty-three thousand, five hundred forty-two".