427295371440 has 160 divisors (see below), whose sum is σ = 1520129419776. Its totient is φ = 97262161920.

The previous prime is 427295371381. The next prime is 427295371453. The reversal of 427295371440 is 44173592724.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 427295371440.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122802 + ... + 932561.

Almost surely, 2^427295371440 is an apocalyptic number.

427295371440 is a gapful number since it is divisible by the number (40) 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 427295371440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (760064709888).

427295371440 is an abundant number, since it is smaller than the sum of its proper divisors (1092834048336).

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

427295371440 is a wasteful number, since it uses less digits than its factorization.

427295371440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055627 (or 1055621 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 48.

The spelling of 427295371440 in words is "four hundred twenty-seven billion, two hundred ninety-five million, three hundred seventy-one thousand, four hundred forty".