1400445331 has 8 divisors (see below), whose sum is σ = 1475600720. Its totient is φ = 1325434752.

The previous prime is 1400445257. The next prime is 1400445353. The reversal of 1400445331 is 1335440041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1400445331 - 2⁷ = 1400445203 is a prime.

It is a super-2 number, since 2×1400445331² = 3922494250239399122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1400445296 and 1400445305.

It is not an unprimeable number, because it can be changed into a prime (1400445391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16050 + ... + 55303.

It is an arithmetic number, because the mean of its divisors is an integer number (184450090).

Almost surely, 2^1400445331 is an apocalyptic number.

1400445331 is a deficient number, since it is larger than the sum of its proper divisors (75155389).

1400445331 is a wasteful number, since it uses less digits than its factorization.

1400445331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72405.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1400445331 is about 37422.5243803782. The cubic root of 1400445331 is about 1118.8075454269.

Adding to 1400445331 its reverse (1335440041), we get a palindrome (2735885372).

The spelling of 1400445331 in words is "one billion, four hundred million, four hundred forty-five thousand, three hundred thirty-one".