1542224406 has 8 divisors (see below), whose sum is σ = 3084448824. Its totient is φ = 514074800.

The previous prime is 1542224401. The next prime is 1542224413. The reversal of 1542224406 is 6044222451.

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

1542224406 is an admirable number.

It is a super-2 number, since 2×1542224406² = 4756912236924105672, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1542224401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128518695 + ... + 128518706.

It is an arithmetic number, because the mean of its divisors is an integer number (385556103).

Almost surely, 2^1542224406 is an apocalyptic number.

1542224406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1542224406 is a wasteful number, since it uses less digits than its factorization.

1542224406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257037406.

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 1542224406 is about 39271.1650705705. The cubic root of 1542224406 is about 1155.3560881785.

Adding to 1542224406 its reverse (6044222451), we get a palindrome (7586446857).

The spelling of 1542224406 in words is "one billion, five hundred forty-two million, two hundred twenty-four thousand, four hundred six".