1401531430 has 64 divisors (see below), whose sum is σ = 2858587200. Its totient is φ = 491097600.

The previous prime is 1401531407. The next prime is 1401531431. The reversal of 1401531430 is 341351041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401531431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 219280 + ... + 225580.

It is an arithmetic number, because the mean of its divisors is an integer number (44665425).

Almost surely, 2^1401531430 is an apocalyptic number.

1401531430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1401531430 is an abundant number, since it is smaller than the sum of its proper divisors (1457055770).

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

1401531430 is a wasteful number, since it uses less digits than its factorization.

1401531430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6409.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1401531430 is about 37437.0328685381. The cubic root of 1401531430 is about 1119.0966967268.

Adding to 1401531430 its reverse (341351041), we get a palindrome (1742882471).

The spelling of 1401531430 in words is "one billion, four hundred one million, five hundred thirty-one thousand, four hundred thirty".