1430432240 has 20 divisors (see below), whose sum is σ = 3325755144. Its totient is φ = 572172864.

The previous prime is 1430432239. The next prime is 1430432251. The reversal of 1430432240 is 422340341.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×1430432240² = 4092272786462835200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8940122 + ... + 8940281.

Almost surely, 2^1430432240 is an apocalyptic number.

1430432240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1430432240 is an abundant number, since it is smaller than the sum of its proper divisors (1895322904).

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

1430432240 is a wasteful number, since it uses less digits than its factorization.

1430432240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17880416 (or 17880410 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 1430432240 is about 37821.0555114476. The cubic root of 1430432240 is about 1126.7366730928.

Adding to 1430432240 its reverse (422340341), we get a palindrome (1852772581).

The spelling of 1430432240 in words is "one billion, four hundred thirty million, four hundred thirty-two thousand, two hundred forty".