427291040 has 48 divisors (see below), whose sum is σ = 1101250080. Its totient is φ = 155377920.

The previous prime is 427291021. The next prime is 427291049. The reversal of 427291040 is 40192724.

It is a junction number, because it is equal to n+sod(n) for n = 427290994 and 427291012.

It is not an unprimeable number, because it can be changed into a prime (427291049) 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, 119630 + ... + 123149.

It is an arithmetic number, because the mean of its divisors is an integer number (22942710).

Almost surely, 2^427291040 is an apocalyptic number.

427291040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

427291040 is an abundant number, since it is smaller than the sum of its proper divisors (673959040).

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

427291040 is a wasteful number, since it uses less digits than its factorization.

427291040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242805 (or 242797 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 427291040 is about 20671.0193265838. The cubic root of 427291040 is about 753.1958677480.

The spelling of 427291040 in words is "four hundred twenty-seven million, two hundred ninety-one thousand, forty".