427061628 has 36 divisors (see below), whose sum is σ = 1233734320. Its totient is φ = 122017536.

The previous prime is 427061603. The next prime is 427061653. The reversal of 427061628 is 826160724.

427061628 is a `hidden beast` number, since 4 + 27 + 0 + 6 + 1 + 628 = 666.

It is an interprime number because it is at equal distance from previous prime (427061603) and next prime (427061653).

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×427061628² = 364763268220020768, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 427061592 and 427061601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 847093 + ... + 847596.

Almost surely, 2^427061628 is an apocalyptic number.

It is an amenable number.

427061628 is an abundant number, since it is smaller than the sum of its proper divisors (806672692).

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

427061628 is a wasteful number, since it uses less digits than its factorization.

427061628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694706 (or 1694701 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 427061628 is about 20665.4694599469. The cubic root of 427061628 is about 753.0610469917.

The spelling of 427061628 in words is "four hundred twenty-seven million, sixty-one thousand, six hundred twenty-eight".