51234430 has 64 divisors (see below), whose sum is σ = 106686720. Its totient is φ = 17547264.

The previous prime is 51234389. The next prime is 51234433. The reversal of 51234430 is 3443215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51234433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 214251 + ... + 214489.

It is an arithmetic number, because the mean of its divisors is an integer number (1666980).

Almost surely, 2^51234430 is an apocalyptic number.

51234430 is an abundant number, since it is smaller than the sum of its proper divisors (55452290).

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

51234430 is a wasteful number, since it uses less digits than its factorization.

51234430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 51234430 is about 7157.8229930615. The cubic root of 51234430 is about 371.4103223635.

Adding to 51234430 its reverse (3443215), we get a palindrome (54677645).

The spelling of 51234430 in words is "fifty-one million, two hundred thirty-four thousand, four hundred thirty".