154421430 has 32 divisors (see below), whose sum is σ = 371755008. Its totient is φ = 41052000.

The previous prime is 154421429. The next prime is 154421441. The reversal of 154421430 is 34124451.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 154421430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2155 + ... + 17705.

It is an arithmetic number, because the mean of its divisors is an integer number (11617344).

Almost surely, 2^154421430 is an apocalyptic number.

154421430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

154421430 is an abundant number, since it is smaller than the sum of its proper divisors (217333578).

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

154421430 is a wasteful number, since it uses less digits than its factorization.

154421430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15892.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 154421430 is about 12426.6419438238. The cubic root of 154421430 is about 536.4993374315.

Adding to 154421430 its reverse (34124451), we get a palindrome (188545881).

The spelling of 154421430 in words is "one hundred fifty-four million, four hundred twenty-one thousand, four hundred thirty".