1401432420 has 48 divisors (see below), whose sum is σ = 3962125440. Its totient is φ = 370085376.

The previous prime is 1401432401. The next prime is 1401432421. The reversal of 1401432420 is 242341041.

It is not an unprimeable number, because it can be changed into a prime (1401432421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107205 + ... + 119564.

It is an arithmetic number, because the mean of its divisors is an integer number (82544280).

Almost surely, 2^1401432420 is an apocalyptic number.

1401432420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401432420 is an abundant number, since it is smaller than the sum of its proper divisors (2560693020).

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

1401432420 is a wasteful number, since it uses less digits than its factorization.

1401432420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226884 (or 226882 counting only the distinct ones).

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

The square root of 1401432420 is about 37435.7104914545. The cubic root of 1401432420 is about 1119.0703435603.

Adding to 1401432420 its reverse (242341041), we get a palindrome (1643773461).

The spelling of 1401432420 in words is "one billion, four hundred one million, four hundred thirty-two thousand, four hundred twenty".