1434278390 has 64 divisors (see below), whose sum is σ = 2739889152. Its totient is φ = 539510400.

The previous prime is 1434278383. The next prime is 1434278393. The reversal of 1434278390 is 938724341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1434278393) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5453399 + ... + 5453661.

It is an arithmetic number, because the mean of its divisors is an integer number (42810768).

Almost surely, 2^1434278390 is an apocalyptic number.

1434278390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1434278390 is a deficient number, since it is larger than the sum of its proper divisors (1305610762).

1434278390 is a wasteful number, since it uses less digits than its factorization.

1434278390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 1434278390 is about 37871.8680553257. The cubic root of 1434278390 is about 1127.7456268580.

The spelling of 1434278390 in words is "one billion, four hundred thirty-four million, two hundred seventy-eight thousand, three hundred ninety".