1401021324 has 36 divisors (see below), whose sum is σ = 3542611800. Its totient is φ = 466856640.

The previous prime is 1401021319. The next prime is 1401021341. The reversal of 1401021324 is 4231201041.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 1401021297 and 1401021306.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 199627 + ... + 206525.

Almost surely, 2^1401021324 is an apocalyptic number.

It is an amenable number.

1401021324 is an abundant number, since it is smaller than the sum of its proper divisors (2141590476).

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

1401021324 is a wasteful number, since it uses less digits than its factorization.

1401021324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12550 (or 12545 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1401021324 is about 37430.2193955633. The cubic root of 1401021324 is about 1118.9609102106.

Adding to 1401021324 its reverse (4231201041), we get a palindrome (5632222365).

The spelling of 1401021324 in words is "one billion, four hundred one million, twenty-one thousand, three hundred twenty-four".