1427424240 has 80 divisors (see below), whose sum is σ = 4827298176. Its totient is φ = 346041600.

The previous prime is 1427424179. The next prime is 1427424253. The reversal of 1427424240 is 424247241.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1427424198 and 1427424207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267706 + ... + 272985.

Almost surely, 2^1427424240 is an apocalyptic number.

1427424240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1427424240 is an abundant number, since it is smaller than the sum of its proper divisors (3399873936).

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

1427424240 is a wasteful number, since it uses less digits than its factorization.

1427424240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540718 (or 540712 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 30.

The square root of 1427424240 is about 37781.2683746854. The cubic root of 1427424240 is about 1125.9463286813.

The spelling of 1427424240 in words is "one billion, four hundred twenty-seven million, four hundred twenty-four thousand, two hundred forty".