424302155 has 4 divisors (see below), whose sum is σ = 509162592. Its totient is φ = 339441720.

The previous prime is 424302121. The next prime is 424302157. The reversal of 424302155 is 551203424.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 424302155 - 2¹⁶ = 424236619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (424302157) 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, 42430211 + ... + 42430220.

It is an arithmetic number, because the mean of its divisors is an integer number (127290648).

Almost surely, 2^424302155 is an apocalyptic number.

424302155 is a deficient number, since it is larger than the sum of its proper divisors (84860437).

424302155 is an equidigital number, since it uses as much as digits as its factorization.

424302155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84860436.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 424302155 is about 20598.5959472970. The cubic root of 424302155 is about 751.4355645269.

Adding to 424302155 its reverse (551203424), we get a palindrome (975505579).

The spelling of 424302155 in words is "four hundred twenty-four million, three hundred two thousand, one hundred fifty-five".