1427155040 has 48 divisors (see below), whose sum is σ = 3385851840. Its totient is φ = 568458240.

The previous prime is 1427155039. The next prime is 1427155061. The reversal of 1427155040 is 405517241.

It is a junction number, because it is equal to n+sod(n) for n = 1427154994 and 1427155012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19580 + ... + 56900.

It is an arithmetic number, because the mean of its divisors is an integer number (70538580).

Almost surely, 2^1427155040 is an apocalyptic number.

1427155040 is a gapful number since it is divisible by the number (10) 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 1427155040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1692925920).

1427155040 is an abundant number, since it is smaller than the sum of its proper divisors (1958696800).

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

1427155040 is a wasteful number, since it uses less digits than its factorization.

1427155040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37575 (or 37567 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 1427155040 is about 37777.7055947023. The cubic root of 1427155040 is about 1125.8755429496.

The spelling of 1427155040 in words is "one billion, four hundred twenty-seven million, one hundred fifty-five thousand, forty".