1430040240 has 60 divisors (see below), whose sum is σ = 4802554224. Its totient is φ = 381343872.

The previous prime is 1430040233. The next prime is 1430040247. The reversal of 1430040240 is 420400341.

1430040240 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1430040233) and next prime (1430040247).

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1430040247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 992364 + ... + 993803.

Almost surely, 2^1430040240 is an apocalyptic number.

1430040240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1430040240 is an abundant number, since it is smaller than the sum of its proper divisors (3372513984).

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

1430040240 is a wasteful number, since it uses less digits than its factorization.

1430040240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1986186 (or 1986177 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1430040240 is about 37815.8728578358. The cubic root of 1430040240 is about 1126.6337389083.

Adding to 1430040240 its reverse (420400341), we get a palindrome (1850440581).

The spelling of 1430040240 in words is "one billion, four hundred thirty million, forty thousand, two hundred forty".