420234154 has 8 divisors (see below), whose sum is σ = 636242688. Its totient is φ = 208153260.

The previous prime is 420234151. The next prime is 420234163. The reversal of 420234154 is 451432024.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (420234151) 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, 981642 + ... + 982069.

It is an arithmetic number, because the mean of its divisors is an integer number (79530336).

Almost surely, 2^420234154 is an apocalyptic number.

420234154 is a deficient number, since it is larger than the sum of its proper divisors (216008534).

420234154 is a wasteful number, since it uses less digits than its factorization.

420234154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963820.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 420234154 is about 20499.6135085518. The cubic root of 420234154 is about 749.0263834562.

Adding to 420234154 its reverse (451432024), we get a palindrome (871666178).

The spelling of 420234154 in words is "four hundred twenty million, two hundred thirty-four thousand, one hundred fifty-four".