3505400242 has 8 divisors (see below), whose sum is σ = 5258443500. Its totient is φ = 1752585744.

The previous prime is 3505400167. The next prime is 3505400293. The reversal of 3505400242 is 2420045053.

It can be written as a sum of positive squares in 2 ways, for example, as 1883646801 + 1621753441 = 43401^2 + 40271^2 .

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

It is a super-2 number, since 2×3505400242² = 24575661713227317128, which contains 22 as substring.

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, 11617 + ... + 84532.

Almost surely, 2^3505400242 is an apocalyptic number.

3505400242 is a deficient number, since it is larger than the sum of its proper divisors (1753043258).

3505400242 is a wasteful number, since it uses less digits than its factorization.

3505400242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114380.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 3505400242 is about 59206.4206146597. The cubic root of 3505400242 is about 1519.0749568296.

Adding to 3505400242 its reverse (2420045053), we get a palindrome (5925445295).

The spelling of 3505400242 in words is "three billion, five hundred five million, four hundred thousand, two hundred forty-two".