1430402240 has 56 divisors (see below), whose sum is σ = 3498232272. Its totient is φ = 556692480.

The previous prime is 1430402221. The next prime is 1430402263. The reversal of 1430402240 is 422040341.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48566 + ... + 72245.

Almost surely, 2^1430402240 is an apocalyptic number.

1430402240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1430402240 is an abundant number, since it is smaller than the sum of its proper divisors (2067830032).

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

1430402240 is a wasteful number, since it uses less digits than its factorization.

1430402240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120865 (or 120855 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1430402240 is about 37820.6589048895. The cubic root of 1430402240 is about 1126.7287961412.

Adding to 1430402240 its reverse (422040341), we get a palindrome (1852442581).

The spelling of 1430402240 in words is "one billion, four hundred thirty million, four hundred two thousand, two hundred forty".