234156420 has 60 divisors (see below), whose sum is σ = 734562444. Its totient is φ = 62441280.

The previous prime is 234156413. The next prime is 234156431. The reversal of 234156420 is 24651432.

234156420 is a `hidden beast` number, since 2 + 3 + 4 + 15 + 642 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 171714816 + 62441604 = 13104^2 + 7902^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 70651 + ... + 73890.

Almost surely, 2^234156420 is an apocalyptic number.

234156420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234156420 is an abundant number, since it is smaller than the sum of its proper divisors (500406024).

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

234156420 is a wasteful number, since it uses less digits than its factorization.

234156420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144562 (or 144551 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 234156420 is about 15302.1704342881. The cubic root of 234156420 is about 616.3612915424.

The spelling of 234156420 in words is "two hundred thirty-four million, one hundred fifty-six thousand, four hundred twenty".