438029460 has 72 divisors (see below), whose sum is σ = 1449485856. Its totient is φ = 106188480.

The previous prime is 438029443. The next prime is 438029461. The reversal of 438029460 is 64920834.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438029461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108634 + ... + 112593.

It is an arithmetic number, because the mean of its divisors is an integer number (20131748).

Almost surely, 2^438029460 is an apocalyptic number.

It is an amenable number.

438029460 is an abundant number, since it is smaller than the sum of its proper divisors (1011456396).

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

438029460 is a wasteful number, since it uses less digits than its factorization.

438029460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221253 (or 221248 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 438029460 is about 20929.1533512467. The cubic root of 438029460 is about 759.4533580677.

The spelling of 438029460 in words is "four hundred thirty-eight million, twenty-nine thousand, four hundred sixty".