1401240432 has 20 divisors (see below), whose sum is σ = 3619871240. Its totient is φ = 467080128.

The previous prime is 1401240427. The next prime is 1401240437. The reversal of 1401240432 is 2340421041.

It is an interprime number because it is at equal distance from previous prime (1401240427) and next prime (1401240437).

It is a junction number, because it is equal to n+sod(n) for n = 1401240399 and 1401240408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401240437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14596207 + ... + 14596302.

It is an arithmetic number, because the mean of its divisors is an integer number (180993562).

Almost surely, 2^1401240432 is an apocalyptic number.

1401240432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1401240432 is an abundant number, since it is smaller than the sum of its proper divisors (2218630808).

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

1401240432 is a wasteful number, since it uses less digits than its factorization.

1401240432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29192520 (or 29192514 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1401240432 is about 37433.1461675345. The cubic root of 1401240432 is about 1119.0192392079.

Adding to 1401240432 its reverse (2340421041), we get a palindrome (3741661473).

The spelling of 1401240432 in words is "one billion, four hundred one million, two hundred forty thousand, four hundred thirty-two".