428162040 has 48 divisors (see below), whose sum is σ = 1391527800. Its totient is φ = 114176448.

The previous prime is 428162029. The next prime is 428162041. The reversal of 428162040 is 40261824.

It is a junction number, because it is equal to n+sod(n) for n = 428161995 and 428162013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428162041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 594310 + ... + 595029.

Almost surely, 2^428162040 is an apocalyptic number.

428162040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

428162040 is an abundant number, since it is smaller than the sum of its proper divisors (963365760).

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

428162040 is a wasteful number, since it uses less digits than its factorization.

428162040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189356 (or 1189349 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 428162040 is about 20692.0767444933. The cubic root of 428162040 is about 753.7072977302.

The spelling of 428162040 in words is "four hundred twenty-eight million, one hundred sixty-two thousand, forty".