1405242534 has 8 divisors (see below), whose sum is σ = 2810485080. Its totient is φ = 468414176.

The previous prime is 1405242529. The next prime is 1405242541. The reversal of 1405242534 is 4352425041.

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

1405242534 is an admirable number.

It is a super-4 number, since 4×1405242534⁴ (a number of 38 digits) contains 4444 as substring.

It is a congruent number.

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, 117103539 + ... + 117103550.

It is an arithmetic number, because the mean of its divisors is an integer number (351310635).

Almost surely, 2^1405242534 is an apocalyptic number.

1405242534 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.

1405242534 is a wasteful number, since it uses less digits than its factorization.

1405242534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234207094.

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 1405242534 is about 37486.5647132409. The cubic root of 1405242534 is about 1120.0835752898.

Adding to 1405242534 its reverse (4352425041), we get a palindrome (5757667575).

The spelling of 1405242534 in words is "one billion, four hundred five million, two hundred forty-two thousand, five hundred thirty-four".