428613670 has 16 divisors (see below), whose sum is σ = 771745968. Its totient is φ = 171391840.

The previous prime is 428613643. The next prime is 428613677. The reversal of 428613670 is 76316824.

It is a super-2 number, since 2×428613670² = 367419356221737800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428613677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48537 + ... + 56683.

It is an arithmetic number, because the mean of its divisors is an integer number (48234123).

Almost surely, 2^428613670 is an apocalyptic number.

428613670 is a deficient number, since it is larger than the sum of its proper divisors (343132298).

428613670 is a wasteful number, since it uses less digits than its factorization.

428613670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13415.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 428613670 is about 20702.9869825588. The cubic root of 428613670 is about 753.9722108397.

It can be divided in two parts, 4286 and 13670, that added together give a square (17956 = 134²).

The spelling of 428613670 in words is "four hundred twenty-eight million, six hundred thirteen thousand, six hundred seventy".