1400421324 has 24 divisors (see below), whose sum is σ = 3313675008. Its totient is φ = 460232080.

The previous prime is 1400421313. The next prime is 1400421389. The reversal of 1400421324 is 4231240041.

It is a super-2 number, since 2×1400421324² = 3922359769427825952, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1400421324.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 820992 + ... + 822695.

It is an arithmetic number, because the mean of its divisors is an integer number (138069792).

Almost surely, 2^1400421324 is an apocalyptic number.

It is an amenable number.

1400421324 is an abundant number, since it is smaller than the sum of its proper divisors (1913253684).

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

1400421324 is a wasteful number, since it uses less digits than its factorization.

1400421324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643765 (or 1643763 counting only the distinct ones).

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

The square root of 1400421324 is about 37422.2036229830. The cubic root of 1400421324 is about 1118.8011523733.

Adding to 1400421324 its reverse (4231240041), we get a palindrome (5631661365).

The spelling of 1400421324 in words is "one billion, four hundred million, four hundred twenty-one thousand, three hundred twenty-four".