1427387290 has 64 divisors (see below), whose sum is σ = 2974777344. Its totient is φ = 483029568.

The previous prime is 1427387267. The next prime is 1427387309. The reversal of 1427387290 is 927837241.

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, 2728969 + ... + 2729491.

It is an arithmetic number, because the mean of its divisors is an integer number (46480896).

Almost surely, 2^1427387290 is an apocalyptic number.

1427387290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1427387290 is an abundant number, since it is smaller than the sum of its proper divisors (1547390054).

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

1427387290 is a wasteful number, since it uses less digits than its factorization.

1427387290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 1427387290 is about 37780.7793725857. The cubic root of 1427387290 is about 1125.9366132618.

The spelling of 1427387290 in words is "one billion, four hundred twenty-seven million, three hundred eighty-seven thousand, two hundred ninety".