228670464 has 176 divisors, whose sum is σ = 681503616. Its totient is φ = 67584000.

The previous prime is 228670457. The next prime is 228670483. The reversal of 228670464 is 464076822.

It is a tau number, because it is divible by the number of its divisors (176).

It is a super-2 number, since 2×228670464² = 104580362211950592, which contains 22 as substring.

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, 2264014 + ... + 2264114.

Almost surely, 2^228670464 is an apocalyptic number.

228670464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228670464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340751808).

228670464 is an abundant number, since it is smaller than the sum of its proper divisors (452833152).

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

228670464 is a wasteful number, since it uses less digits than its factorization.

228670464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 39.

The square root of 228670464 is about 15121.8538546039. The cubic root of 228670464 is about 611.5097102724.

The spelling of 228670464 in words is "two hundred twenty-eight million, six hundred seventy thousand, four hundred sixty-four".